Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
5.2 communication » 3.2 communication, 6.2 communication, 2.2 communication
post development » port development, test development, export development
development lie » development life, development li, development lid
inflation past » inflation part, inflation pt, inflation das
lie afrique » l afrique
past case » east case, past based, test case
cost post » costs cost, cost push, just post
case 5.2 » case 4.2, case 3.2, case 2

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

• Adding a wildcard symbol may retrieve word variants: technology _ inflation past case 5.2 communication cost post development lie afrique.*.