Perhaps you should try some spelling variations:
cat communications » data communications, chad communications, haiti communications
communications pt » communication pt, communications _, communications a
le developpement » de developpement, sme development
typologies does » typologie des, typologie der, typologien der
developpement l » developpement il, developpement la, developpement de
does variation » de variation, der variation, die variation
l afrique » en afrique
6 does » 16 does, 4 does, 1 does
2 does » 4 does
pt le » et le, pt e, p le

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: "typologies does variation ((6 does) OR (2 does)) cat communications pt le developpement l afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologies does variation ((6 does) OR (2 does)) cat communications pt le developpement l afrique.*.