Perhaps you should try some spelling variations:
surveys integration » surveys interpreting, survey international, surveys introduction
technology surveys » technology survey, technology series, technology curve
3.2 communication » 3 communication, 2.3 communication, de communication
developpement et » developpement des, developpement de, development east
a developpement » au developpement, de developpement, le developpement
integration du » integration de, integration do, integration dual
et afrique » en afrique, l afrique
trade 3.2 » trade 2.2, trade 2, trade 4.1
du trade » eu trade, do trade, d trade
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology surveys integration du trade 3.2 communication costs a developpement et afrique.*.