Perhaps you should try some spelling variations:
data communication » data communications
developpement en » developpement et, developpement des, developpement de
de variation » der variation, die variation, does variation
apology de » apologia de, apology mea, apology _
dr data » gdpr data, war data, our data
a du » a d, a u, _ du
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: "apology de variation _ dr data communication ((a du) OR (a de)) developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: apology de variation _ dr data communication ((a du) OR (a de)) developpement en afrique.*.