Perhaps you should try some spelling variations:
2.3 communication » 3.2 communication, de communication, 4 communication
technology rapid » technology rate, technology road, technology trap
rapid population » world population
developpement la » developpement de, developpement et, developpement du
4 developpement » de developpement, le developpement, et developpement
prices 2.3 » price 2.3, prices 2.4, prices 2.1
la afrique » l afrique, la fabrique, en afrique
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: technology rapid population _ prices 2.3 communication costs 4 developpement la afrique.*.