Perhaps you should try some spelling variations:
power development » water development, career development, hydropower development
development en » developpement en, development menu, development eco
des variation » does variation, de variation, der variation
typology des » typologie des, typologie der, typology _
soa 4 » soa _, soa 1, soa 3
sea 4 » sea _, sea a, sea 6

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 des variation _ ((soa 4) OR (sea 4)) communication a power development en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology des variation _ ((soa 4) OR (sea 4)) communication a power development en afrique.*.