Perhaps you should try some spelling variations:
pilots language » loss language, rights language
plain language » latin language, italian language, persian language
lonely pilots » jointly pilots
lonely plain » lonely planet
social rate » social role, social roles
social kit » social kind, social aid, social act

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( lonely plain language social kit ) or ( lonely pilots language social rate ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( lonely plain language social kit ) OR ( lonely pilots language social rate )).
• Adding a wildcard symbol may retrieve word variants: (( lonely plain language social kit ) or ( lonely pilots language social rate ))*.