Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
communication modes » communication model, communication des, communication media
integrating world » integrated world, integrating area, integrating land
19.2 integrating » 1.3.2 integrating, 3.2 integrating, 4.2 integrating
le developpement » de developpement, sme development
developpement de » developpement des, developpement durable
technology 19.2 » technology 1.2, technology 11.2, technology 19.6
de afrique » de l'afrique, en afrique, l afrique
modes le » modes de, bodies le, model led

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

• Adding a wildcard symbol may retrieve word variants: technology 19.2 integrating world _ voice communication modes le developpement de afrique.*.