Perhaps you should try some spelling variations:
communication based » communication united, communication brazil, communication barriers
information class » information classes, information case, information costs
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
du developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
class success » chess success, classes access, can success
technology 2 » technology _, technology 1, technology 3
success 4.1 » success 2.1, success 1.1, success 4.3
l afrique » en afrique
based du » based dm, based drug, based dna

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

• Adding a wildcard symbol may retrieve word variants: technology 2 information class success 4.1 communication based du developpement l afrique.*.