Perhaps you should try some spelling variations:
technologies based » technologies used, technology based, technologies a
oral communication » personal communication
based information » basic information, based innovation, land information
information faire » information failure, information fake, information failures
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: technologies based information faire _ oral communication a de developpement en afrique.*.