Perhaps you should try some spelling variations:
transfer relations » transfer operations, transfer stations, transfer simulations
5.3 communication » 2.3 communication, 4.3 communication, 1.3 communication
relations based » relation based, regulations based, relations case
a developpement » au developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
l afrique » en afrique
time 5.3 » time 5.4, time 3.2, time 4.4
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology transfer relations based time 5.3 communication costs a developpement l afrique.*.