Perhaps you should try some spelling variations:
power development » water development, career development, hydropower development
communication 5 » communication _, communication a, communication 3
development en » developpement en, development menu, development eco
des variation » does variation, de variation, der variation
variation did » variation des, variation der, variation im
typology des » typologie des, typologie der, typology _
5 power » 2 power, 3 power, 4 power
so 4 » soe 4, sos 4, o 4

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 did ((so 4) OR (so _)) communication 5 power development en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology des variation did ((so 4) OR (so _)) communication 5 power development en afrique.*.