Perhaps you should try some spelling variations:
datos communications » data communications, laos communications, states communications
typologie fur » typologie der, typologie auf, typologie wird
fur variation » four variation, zur variation, der variation
des afrique » en afrique, de l'afrique
a das » 1 das, 2 das, _ das
3 das » 1 das, 2 das

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: "typologie fur variation _ de datos communications ((a das) OR (3 das)) developpement des afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie fur variation _ de datos communications ((a das) OR (3 das)) developpement des afrique.*.