Perhaps you should try some spelling variations:
tools information » models information, pooled information, does information
4.2 communication » 4.2 communications, 3.2 communication, 4.1 communication
technology tools » technology thesis
au developpement » du developpement, de developpement, le developpement
information und » informations und
des afrique » en afrique, de l'afrique
und trade » aid trade, und trans, und traum
trade 4.2 » trade 2.2, trade 3.2, trade 4.1
costs au » costs a, costs amy, costs _

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

• Adding a wildcard symbol may retrieve word variants: technology tools information und trade 4.2 communication costs au developpement des afrique.*.