// Language setting (optional).
// The ID can be found in the documentation:
// https://developers.google.com/adwords/api/docs/appendix/languagecodes
// See the documentation for limits on the number of allowed language parameters:
// https://developers.google.com/adwords/api/docs/reference/latest/TargetingIdeaService.LanguageSearchParameter
LanguageSearchParameter languageParameter = new LanguageSearchParameter();
Language english = new Language();
english.setId(1000L);
languageParameter.setLanguages(new Language[] {english});
selector.setSearchParameters(
new SearchParameter[] {relatedToQuerySearchParameter, languageParameter});
// Get related keywords.