Perhaps you should try some spelling variations:
integrating theory » integration theory, integrated theory
au developpement » du developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
theory problems » other problems
2 communication » 3 communication, 4 communication, 1 communication
6 integrating » _ integrating, 4 integrating
technology 6 » technology _, technology 1, technology 3
problems 2 » problems _, problems 3, problems a
costs au » costs a, costs amy, costs _

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

• Adding a wildcard symbol may retrieve word variants: technology 6 integrating theory problems 2 communication costs au developpement en afrique.*.