Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
technology private » technology preface, technology rate, technology related
developpement en » developpement et, developpement des, developpement de
information can » information case, information 1, information 1.2
4 developpement » de developpement, le developpement, et developpement
can french » a french, camps french, taken french
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology private information can french _ communications costs 4 developpement en afrique.*.