Perhaps you should try some spelling variations:
data communication » data communications
developpement en » developpement et, developpement des, developpement de
typologies der » typologie der, typologien der, typologie des
der variation » de variation, does variation, die variation
variation von » variationen von, variation _, variation 6
von hiv » von hier
a net » a new, _ net, a neo
a et » a set, a bet, a jet

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 der variation von hiv data communication ((a et) OR (a net)) developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologies der variation von hiv data communication ((a et) OR (a net)) developpement en afrique.*.