Perhaps you should try some spelling variations:
sme development » trade development
development de » development d, development ds, developpement de
der variation » de variation, does variation, die variation
typology der » typologie der, typologien der, typologie des
de afrique » de l'afrique, en afrique, l afrique
aid do » did do, aid does

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: "typology der variation ((aid do) OR (aid go)) data communications _ sme development de afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology der variation ((aid do) OR (aid go)) data communications _ sme development de afrique.*.