Perhaps you should try some spelling variations:
technology transfers » technology transfer
trade developpement » trade developement, trade development, de developpement
developpement en » developpement et, developpement des, developpement de
2 communication » 3 communication, 4 communication, 1 communication
transfers from » transfer from
targets while » target while, targets whole, targets where
from targets » from large, drug targets, term targets
while 2 » while _, chile 2, while a

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

• Adding a wildcard symbol may retrieve word variants: technology transfers from targets while 2 communication _ trade developpement en afrique.*.