Perhaps you should try some spelling variations:
de developpement » sme development
der variation » de variation, does variation, die variation
typology der » typologie der, typologien der, typologie des
des afrique » en afrique, de l'afrique
der open » der oper, der tropen, der opfer
der opec » der oper, des opec, der opfer
a de » a die, a der, a des

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 _ ((der open) OR (der opec)) communication a de developpement des afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology der variation _ ((der open) OR (der opec)) communication a de developpement des afrique.*.