Perhaps you should try some spelling variations:
leur developpement » le developpement, deux developpements, de developpement
information wages » information age, information wants, information war
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
developpement l » developpement il, developpement la, developpement de
i information » 2 information, 1 information
technology i » technology ii, technology iv, technology 1
wages prices » wage price, gas prices, wages race
prices 4.1 » price 4.1, prices 2.1, prices 3.1
costs leur » costs clear
l afrique » en afrique

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

• Adding a wildcard symbol may retrieve word variants: technology i information wages prices 4.1 communication costs leur developpement l afrique.*.