Perhaps you should try some spelling variations:
communication costly » communication costs, communication costa, communications costs
13 communication » 3 communication, 1 communication, 10 communication
land development » world development, child development
development mali » development maria, development small, development main
valuation wage » valuation case, valuation date, evaluation age
mali afrique » l afrique
costly land » cost land, costs land, country land
wage costs » care costs
costs 13 » costs 1, costs 3, costs 12.3

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

• Adding a wildcard symbol may retrieve word variants: technologies _ valuation wage costs 13 communication costly land development mali afrique.*.