Forward geocoding doesnt give correct results - ios

Question

I didn't get correct results for Forward geocoding in certain cases. When I search for some places or hotel it shows result of some others places or areas. I have got following code. I study the following link. What url should i place to get correct results.
how can we implement the following given in following site
https://developers.google.com/places/webservice/autocomplete
A request for addresses containing "Vict" with results in French:
https://maps.googleapis.com/maps/api/place/autocomplete/json?input=Vict&types=geocode&language=fr&key=API_KEY
A request for cities containing "Vict" with results in Brazilian
Portuguese:
https://maps.googleapis.com/maps/api/place/autocomplete/json?input=Vict&types=(cities)&language=pt_BR&key=API_KEY
I have implemented following but it doesn't give the results as i aspected
- (CLLocationCoordinate2D)addressLocation{
NSError *error = nil;
// NSString *lookUpString = [NSString stringWithFormat:#"http://maps.googleapis.com/maps/api/geocode/json?address=%#&sensor=true", SearchtextField];
// NSString *API_KEY=#"AIzaSyB27SkGBzvEYKcxvZ5nmOVWvrA-6Xqf-7A";
NSString *API_KEY=#"AIzaSyCHcqJcqZbP1XpU-WB4VfRct5hpdgqisSY";
NSString *lookUpString = [NSString stringWithFormat:#"https://maps.googleapis.com/maps/api/geocode/json?address=%#&region=np&key=%#", SearchtextField,API_KEY];
lookUpString = [lookUpString stringByReplacingOccurrencesOfString:#" " withString:#"+"];
NSData *jsonResponse = [NSData dataWithContentsOfURL:[NSURL URLWithString:lookUpString]];
NSDictionary *jsonDict = [NSJSONSerialization JSONObjectWithData:jsonResponse options:kNilOptions error:&error];
NSArray *locationArray = [[[jsonDict valueForKey:#"results"] valueForKey:#"geometry"] valueForKey:#"location"];
NSString *statusString = [jsonDict valueForKey:#"status"];
if ([statusString isEqualToString:#"OK"])
{
locationArray = [locationArray objectAtIndex:0];
Str_Latitude= [locationArray valueForKey:#"lat"];
Str_Longitude= [locationArray valueForKey:#"lng"];
NSLog(#"LatitudeString:%# & LongitudeString:%#", Str_Latitude, Str_Longitude);
/*Google place latitude Longitude*/
Arr_LatLong = #[Str_Latitude,Str_Longitude];
[[NSUserDefaults standardUserDefaults] setValue:Str_Latitude forKey:#"Str_Latitude"];
[[NSUserDefaults standardUserDefaults] setValue:Str_Longitude forKey:#"Str_Longitude"];
[[NSUserDefaults standardUserDefaults] synchronize];
GogLatitude = [Str_Latitude doubleValue];
Goglongitude = [Str_Longitude doubleValue];
if (Bool_SearchField) {
[self getGoogleAddress];
Bool_SearchField=FALSE;
}else{
}
}else{
UIAlertView *alertview =[[UIAlertView alloc] initWithTitle:#"Address not found" message:#"make sure you enter a valid address" delegate:self cancelButtonTitle:#"OK" otherButtonTitles: nil];
[alertview show];
NSLog(#"Something went wrong, couldn't find address");
[self.tableView reloadData];
}
GogLocation.latitude = GogLatitude;
GogLocation.longitude = Goglongitude;
return GogLocation;
}
When i search for radission in maps.google.com it shows as below
But when i search in my app it shows different locations then what I search

Answer 1

You can either take use of the Region Biasing, which according to wiki, should be NP. So add &region=np at the end of your query.
Or you can use the Viewport Biasing to set the bounds of your searches.

Answer 2

I have done what you have asked in one of my apps, but the url is different.
I am posting the function that gets called each time i input something in a text field.
-(void) startAutocomplete{
NSString* baseUrl = [NSString stringWithFormat:#"https://maps.googleapis.com/maps/api/place/queryautocomplete/json?input=%#&key=AIzaSyDz3HAmNY8NsgIhtA8gtbH-QA08Lg9tej4&types=all", self.locationTextfield.text];
NSURL *url = [NSURL URLWithString:[baseUrl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
NSLog(#"Url: %#", url);
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
if (connectionError!=nil) {
[[[UIAlertView alloc] initWithTitle:nil message:connectionError.localizedDescription delegate:self cancelButtonTitle:#"OK" otherButtonTitles: nil] show ] ;
}else{
NSError *error = nil;
self.searchResult= [NSJSONSerialization JSONObjectWithData:data options:0 error:&error];
//NSLog(#"result:%#",self.searchResult);
[self.tableView reloadData];
}
}];
}