Perhaps you should try some spelling variations:
2.3 communication » 3.2 communication, de communication, 4 communication
transfer history » transfer factor, transfer factors
et developpement » de developpement, le developpement, test development
developpement de » developpement des, developpement durable
history arms » history aims, history amp, history art
efforts et » efforts _, effets et, effors pt
de afrique » de l'afrique, en afrique, l afrique
race 2.3 » race 8.3, france 2.3, space 2.3

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

• Adding a wildcard symbol may retrieve word variants: technology transfer history arms race 2.3 communication efforts et developpement de afrique.*.