Perhaps you should try some spelling variations:
leur developpement » le developpement, deux developpements, de developpement
oral communication » personal communication
technologies land » technologies can, technologies any, technologies lead
land information » fund information, und information, award information
developpement en » developpement et, developpement des, developpement de
information pt » information part, information 1, information 1.2
a oral » _ oral, 2 oral, 4 oral
pt a » pt 2, pt 1, pt 3

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

• Adding a wildcard symbol may retrieve word variants: technologies land information pt a oral communication a leur developpement en afrique.*.