Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
vector interaction » sector interactions, actor interaction, sector integration
man communications » oman communications, human communications, iran communications
techniques vector » techniques section, techniques history, techniques deduction
interaction det » interaction data, interaction dead, interaction model
3.1 development » 2 development
development li » development lid, development lie, development lin
li afrique » l afrique, en afrique
costs 3.1 » costs 3.5, costs 4.1, costs 2.1
det data » debt data, pet data, set data
data man » data mean, data main, data map

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

• Adding a wildcard symbol may retrieve word variants: techniques vector interaction det data man communications costs 3.1 development li afrique.*.