Perhaps you should try some spelling variations:
technologies 2.1 » technologies _, technologies 4, technologies a
de communication » mobile communication, online communication
de developpement » sme development
total labor » local labor, total factor
des afrique » en afrique, de l'afrique
2.1 total » 3.1 total, 2.2 total, 2.4 total
media de » media die, media der, media diet
labor a » labor _
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.1 total labor a de communication media de developpement des afrique.*.