Perhaps you should try some spelling variations:
communication cote » communication costs, communication costa, communication case
face communication » voice communication, de communication, time communication
development based » development band, development case, development bank
technology 4.1 » technology 3.1, technology 2.1, technology 1
4.1 relative » 2.1 relative, 6.1 relative, 1.1 relatives
relative de » relative sea, relative age, relative _
prices face » prices fall, prices wages, prices macro
cote social » code social, close social, more social
based labor » waged labor, bonded labor, shared labor
de prices » do prices, debt prices, set prices

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

• Adding a wildcard symbol may retrieve word variants: technology 4.1 relative de prices face communication cote social development based labor.*.