Perhaps you should try some spelling variations:
communications media » communication media, communication india, communications series
d developpement » de developpement, du developpement, le developpement
informal labor » formal labor
technologie c » technologies 2, technologies 3, technologies 1
des african » new african, do african, me african
c informal » _ informal, 3 informal, 8 informal
media d » media _, media 1, media 3
ch 4 » ch 1, ch 3, ch 5
ch 2 » c 2, ch 1

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technologie c informal labor ((ch 4) OR (ch 2)) communications media d developpement des african.~".
• Adding a wildcard symbol may retrieve word variants: technologie c informal labor ((ch 4) OR (ch 2)) communications media d developpement des african.*.