Perhaps you should try some spelling variations:
guiana communications » guyana communications, guinea communications, ghana communications
communications et » communication et, communications pt, communications en
ou developpement » du developpement, au developpement, de developpement
der variation » de variation, does variation, die variation
des afrique » en afrique, de l'afrique
et ou » et du, et au
theorie » theories

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

• Performing a fuzzy search may retrieve terms with similar spellings: theorie der variation ((a new) OR (_ new)) guiana communications et ou developpement des afrique.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theorie der variation ((a new) OR (_ new)) guiana communications et ou developpement des afrique.*".