Perhaps you should try some spelling variations:
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
more information » price information, trade information
du developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
technology more » technology moral, technology make, technology mara
information per » information super, information part, information pt
per case » per class, per se, our case
case 4.1 » case 4.2, case 1
costs du » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology more information per case 4.1 communication costs du developpement en afrique.*.