Perhaps you should try some spelling variations:
cooperation effort » conservation effort, conservation efforts, collection effort
training services » planning services, banking services
side cooperation » wide cooperation, nile cooperation, trade cooperation
firm training » term training, formal training, re training
supply firm » supply farm

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply firm training services. ) or ( supply side cooperation effort. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply firm training services. ) OR ( supply side cooperation effort. )).
• Adding a wildcard symbol may retrieve word variants: (( supply firm training services. ) or ( supply side cooperation effort. ))*.