Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
based communications » based communication, speed communications, aided communications
income information » outcome information, inside information, incomplete information
technology income » technology icemt, technology icfmm, technology icmet
developpement et » developpement des, developpement de, development east
a developpement » au developpement, de developpement, le developpement
information 3 » information 2
et afrique » en afrique, l afrique
pls based » pvs based, lppls based, pdms based
costs a » costs _, costs 4
3 pls » _ pls, 3 pll

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

• Adding a wildcard symbol may retrieve word variants: technology income information 3 pls based communications costs a developpement et afrique.*.