Perhaps you should try some spelling variations:
2.7 communication » 2.3 communication, 3.2 communication, 2 communication
aids information » chandos information, series information
au developpement » du developpement, de developpement, le developpement
technology aids » technology a, technology age, technology asia
information aid » information asia, information age, information a
developpement l » developpement il, developpement la, developpement de
trade 2.7 » trade 2.2, trade 2.1, trade 4.7
l afrique » en afrique
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 aids information aid trade 2.7 communication costs au developpement l afrique.*.