Perhaps you should try some spelling variations:
leur developpement » le developpement, deux developpements, de developpement
2.3 communication » 3.2 communication, de communication, 4 communication
integration pork » integration work, integration post, integration report
developpement en » developpement et, developpement des, developpement de
res integration » dis integration, 1.2 integration, process integration
technology res » technology risk, technology r, technology risks
pork trade » book trade, export trade, import trade
costs leur » costs clear
trade 2.3 » trade 2.2, trade 2.1, trade 1.3

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

• Adding a wildcard symbol may retrieve word variants: technology res integration pork trade 2.3 communication costs leur developpement en afrique.*.