Perhaps you should try some spelling variations:
10.4 communication » 1.4 communication, 10.2.4 communication, 10.4.3 communication
developpement en » developpement et, developpement des, developpement de
technology gaps » technology gap
e developpement » de developpement, le developpement, et developpement
gaps inflation » has inflation, grade inflation, rapid inflation
inflation age » inflation rate, inflation a, inflation auf
case 10.4 » case 1.4, case 12.4, case 2.4
age case » ages case, age care, age cave
costs e » 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 gaps inflation age case 10.4 communication costs e developpement en afrique.*.