Perhaps you should try some spelling variations:
voice communicating » voice communications, voice communication, voice communicative
communicating model » communication model, communicating under, communication modes
le developpement » de developpement, sme development
developpement de » developpement des, developpement durable
integrated land » integrated plan, integrated flood, integrated care
technology 17 » technology 1.7, technology 171, technology 1
17 integrated » 1 integrated, 10 integrated, 11 integrated
de afrique » de l'afrique, en afrique, l afrique
model le » model led, model law, model 1

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

• Adding a wildcard symbol may retrieve word variants: technology 17 integrated land _ voice communicating model le developpement de afrique.*.