Perhaps you should try some spelling variations:
integration water » integration after, integrating water, integration peter
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
del developpement » de developpement, des developpements, le developpement
4.1 integration » 3.3 integration, 4 integration, 3 integration
developpement l » developpement il, developpement la, developpement de
technology 4.1 » technology 3.1, technology 2.1, technology 1
water trade » after trade, paper trade
trade 6.2 » trade 2.2, trade 3.2, trade 4.2
costs del » costa del, costo del
l afrique » en afrique

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

• Adding a wildcard symbol may retrieve word variants: technology 4.1 integration water trade 6.2 communication costs del developpement l afrique.*.