Perhaps you should try some spelling variations:
5.4 communication » de communication, data communication
development en » developpement en, development menu, development eco
die variation » de variation, does variation, der variation
typology die » typology _, typology 4.1, typology 6
variation im » variation _, variation 6, variation des
soe 5.4 » mode 5.4, size 5.4, zone 5.4
5 power » 3 power, 4 power
im soe » im sog

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 die variation im soe 5.4 communication ((5 power) OR (2 power)) development en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology die variation im soe 5.4 communication ((5 power) OR (2 power)) development en afrique.*.