Perhaps you should try some spelling variations:
language survival » language social, language services
planned languages » planet language, based languages, learned language
plain language » latin language, italian language, persian language
lonely planned » lonely planet
lonely plain » lonely planet
rate » rates

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 survival rate ) or ( lonely planned languages survival rate ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( lonely plain language survival rate ) OR ( lonely planned languages survival rate )).
• Adding a wildcard symbol may retrieve word variants: (( lonely plain language survival rate ) or ( lonely planned languages survival rate ))*.