Perhaps you should try some spelling variations:
3.2 communication » 3 communication, 2.3 communication, de communication
technology right » technology rights, technology high, technology rich
injection target » invocation target, inflation target, connection targets
developpement en » developpement et, developpement des, developpement de
right injection » right infection, right insertion, right intention
target trade » target grade, market trade, target rate
trade 3.2 » trade 2.2, trade 2, trade 4.1

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

• Adding a wildcard symbol may retrieve word variants: technology right injection target trade 3.2 communication costs _ developpement en afrique.*.