Perhaps you should try some spelling variations:
transfer relations » transfer operations, transfer stations, transfer simulations
de communication » mobile communication, online communication
de developpement » sme development
developpement de » developpement des, developpement durable
relations based » relation based, regulations based, relations case
de afrique » de l'afrique, en afrique, l afrique
costs de » costs _, costs 4, costs a
time de » time die, estime de, time done

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

• Adding a wildcard symbol may retrieve word variants: technology transfer relations based time de communication costs de developpement de afrique.*.