Perhaps you should try some spelling variations:
2.3 communication » 3.2 communication, de communication, 4 communication
study transition » steady transition, speedy transition, de transition
transition layer » transaction layer, translation layer, transition case
developpement du » developpement de, developpement des, developpement et
layer price » lower price, water price
du afrique » en afrique, l afrique, de l'afrique
price 2.3 » price 3, price 4.4

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

• Adding a wildcard symbol may retrieve word variants: technology study transition layer price 2.3 communication costs _ developpement du afrique.*.