Perhaps you should try some spelling variations:
oral communication » personal communication
les developpement » le developpement, des developpements, leur developpement
developpement il » developpement de, developpement et, developpement du
technologies e » technologies et, technologies _, technologies 4
e information » e informacion, age information, die information
preface des » preface de, preface les, preface ires
il afrique » l afrique, en afrique
des oral » des moral, des oil, des orts

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

• Adding a wildcard symbol may retrieve word variants: technologies e information preface des oral communication _ les developpement il afrique.*.