Perhaps you should try some spelling variations:
technology transfers » technology transfer
transfers simulation » transfer simulation, transfer simulations, transport simulation
simulation 4.3.1 » simulation 5.3.1, simulation 1.3.1, simulation 4.1.1
de developpement » sme development
developpement de » developpement des, developpement durable
4 communication » 3 communication, 5.4 communication, de communication
4.3.1 rice » 4.3.1 die, 2.6.1 rice
de afrique » de l'afrique, en afrique, l afrique
rice 4 » rice _, rice 1, rice 8

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

• Adding a wildcard symbol may retrieve word variants: technology transfers simulation 4.3.1 rice 4 communication _ de developpement de afrique.*.