Perhaps you should try some spelling variations:
vector interaction » sector interactions, actor interaction, sector integration
communication cost » communication costs, communication costa, communications costs
techniques vector » techniques section, techniques history, techniques deduction
2.4 development » 2.3 development, 2.1 development, 2.2 development
interaction e » interaction _, interaction 1, interaction 4
development l » development li, development 1, development law
l afrique » en afrique
e data » e datas, age data, cge data

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

• Adding a wildcard symbol may retrieve word variants: techniques vector interaction e data human communication cost 2.4 development l afrique.*.