Perhaps you should try some spelling variations:
vote communication » voice communication, ante communication, remote communication
trade information » price information, private information, trade integration
technology trade » technology trends, technology transfer, technology transfers
information when » information what, information war, information wants
developpement en » developpement et, developpement des, developpement de
when have » where have, women have, when he
have vote » have come, have done, have gone

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

• Adding a wildcard symbol may retrieve word variants: technology trade information when have vote communication costs _ developpement en afrique.*.