Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
developpement la » developpement de, developpement et, developpement du
information can » information case, information 1, information 1.2
4 developpement » de developpement, le developpement, et developpement
technologies 2 » technologies _, technologies 4
la afrique » l afrique, la fabrique, en afrique
age data » wage data, cge data, image data
can age » can wage, man age, can agree
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: technologies 2 information can age data communications costs 4 developpement la afrique.*.