Perhaps you should try some spelling variations:
teachers communication » teacher communication, teaching communication, actors communication
development southeast » development south, development studies
variation tests » variation test, validation tests, evaluation tests
des variation » does variation, de variation, der variation
des teachers » do teachers, ce teachers, esl teachers
tests des » tests de, test des, testes de
a a » a la
typologie » typologies, typology

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

• Adding a wildcard symbol may retrieve word variants: typologie des variation tests des teachers communication a a development southeast afrique.*.