Perhaps you should try some spelling variations:
personal communication » interpersonal communication
le developpement » de developpement, sme development
developpement du » developpement de, developpement des, developpement et
die variation » de variation, does variation, der variation
theorie die » theorie der, theorie des, theorie ein
du afrique » en afrique, l afrique, de l'afrique
4 its » 4 it's, 2 its, 4 ito
a le » a les, a la, a l

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theorie die variation ((4 its) OR (_ its)) personal communication a le developpement du afrique.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theorie die variation ((4 its) OR (_ its)) personal communication a le developpement du afrique.*".