Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
communication issues » community issues, communication india, communication united
cooperation history » corporation history, federation history
les communications » laos communications, nps communications, u.s communications
nets communication » lea's communication, mass communication, c's communication
its cooperation » city cooperation, et cooperation, its corporation

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((( les communications costs ) or ( nets communication issues ))) or ( its cooperation history ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( les communications costs ) OR ( nets communication issues ))) OR ( its cooperation history )).
• Adding a wildcard symbol may retrieve word variants: (((( les communications costs ) or ( nets communication issues ))) or ( its cooperation history ))*.