Perhaps you should try some spelling variations:
communication modes » communication model, communication des, communication media
trade communication » true communication, stroke communication, radio communication
integration work » integrating world, integration framework, integration 3
au developpement » du developpement, de developpement, le developpement
10 integration » 11 integration, 1.2 integration, 3 integration
technology 10 » technology 110, technology 1, technology 11
des afrique » en afrique, de l'afrique
20 trade » 2 trade, 2012 trade, 2005 trade
modes au » modeles au, modele au, modes _
work 20 » work 120, work 2, work 10

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

• Adding a wildcard symbol may retrieve word variants: technology 10 integration work 20 trade communication modes au developpement des afrique.*.