Perhaps you should try some spelling variations:
technology transfers » technology transfer
transfers effects » transfer effects, transfers affect, transient effects
3.2 communication » 3 communication, 2.3 communication, de communication
developpement en » developpement et, developpement des, developpement de
a developpement » au developpement, de developpement, le developpement
effects real » effective real, effects thread, effects a
real prices » retail prices, cereal prices, rural prices
prices 3.2 » price 3.2, prices 3.1, prices 4.2
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 transfers effects real prices 3.2 communication costs a developpement en afrique.*.