Perhaps you should try some spelling variations:
communication problems » communication process, communication processes, communication protocols
technologies based » technologies used, technology based, technologies a
based information » basic information, based innovation, land information
cat communication » data communication, csr communication, et communication
due developpement » de developpement, du developpement, le developpement
developpement en » developpement et, developpement des, developpement de
information do » information does, information der, information due
problems due » problems does, problems der, problems age
does cat » does cash, does city, does a
do does » do dogs, der does, who does

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

• Adding a wildcard symbol may retrieve word variants: technologies based information do does cat communication problems due developpement en afrique.*.