Perhaps you should try some spelling variations:
communication cooperation » communication conversation, communication operator, communication collaboration
cooperation basque » cooperation case, cooperation based, cooperation fast
basque dimensions » value dimensions, basic dimensions, based dimensions
dimensions index » dimensional index, dimensions under, dimensions des
index tree » index free, index time, indexing tree

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication cooperation basque dimensions index tree~.
• Adding a wildcard symbol may retrieve word variants: communication cooperation basque dimensions index tree*.