Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
based communications » based communication, speed communications, aided communications
test development » forest development, port development, mena development
development desd » development ssesd, development does, development deal
iv information » 2 information, 1 information
technology iv » technology ii, technology i, technology ict
desd afrique » en afrique, de l'afrique
costs test » costs cost
ses based » aes based, sms based, cases based
3.2 ses » 3.2 sem, 3.2 sfs, 3.2 steps

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

• Adding a wildcard symbol may retrieve word variants: technology iv information 3.2 ses based communications costs test development desd afrique.*.