Perhaps you should try some spelling variations:
test development » forest development, port development, mena development
communication 3 » communication _, communication a
development ds » development d, development does, development desd
ds afrique » en afrique, l afrique, de l'afrique
3 test » 2 test, f test, 4 test
2 co » _ co, a co

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technologies _ information ((2 c) OR (2 co)) mediated communication 3 test development ds afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies _ information ((2 c) OR (2 co)) mediated communication 3 test development ds afrique.*.