Perhaps you should try some spelling variations:
technologies trade » technology trade, technologies case, technologies table
oral communication » personal communication
trade information » price information, private information, trade integration
development east » development southeast, development 1
information 1.2 » information 1.5.2, information 2
communication 2 » communication _, communication a, communication 3
ets development » its development, arts development, eu's development
east afrique » east africa, east african, en afrique
how oral » how moral, how rural, how arab
1.2 how » 3.2 how, 4.2 how, 2.2 how
2 ets » _ ets, 2 its

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

• Adding a wildcard symbol may retrieve word variants: technologies trade information 1.2 how oral communication 2 ets development east afrique.*.