Perhaps you should try some spelling variations:
communication 3.4.1 » communication 3.2.1, communication 3.3.1, communication 3.4.4
true communication » truth communication, time communication, stroke communication
development east » development southeast, development 1
interaction 3.3 » interaction _, interaction 1, interaction 4
das development » dams development, gas development, does development
east afrique » east africa, east african, en afrique
3.4.1 das » 4.4.1 das, 3.4.1 data, 3.4.1 die
a true » _ true
3.3 a » 3.3 _, 2.3 a, 4.3 a

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

• Adding a wildcard symbol may retrieve word variants: technology _ interaction 3.3 a true communication 3.4.1 das development east afrique.*.