Perhaps you should try some spelling variations:
oral communication » personal communication
technologies case » technologies based, technologies can, technologies create
case information » care information, based information, phase information
information 11.2 » information 1.2, information 15.2, information 11.3
development east » development southeast, development 1
communication 2 » communication _, communication a, communication 3
et development » et developpment, set development, ct development
east afrique » east africa, east african, en afrique
11.2 how » 1.2 how, 12.2 how, 21.2 how
how oral » how moral, how rural, how arab
2 et » 2 set, 12 et, 2 ets

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

• Adding a wildcard symbol may retrieve word variants: technologies case information 11.2 how oral communication 2 et development east afrique.*.