Perhaps you should try some spelling variations:
data communication » data communications
does variation » de variation, der variation, die variation
typology does » typologie des, apology do's, typology how
development l » development li, development 1, development law
variation 4 » variations 4, variation _, variation 6
does data » does cat
l afrique » en afrique
5 trade » 4 trade, 2 trade, 3 trade
1 trade » 4 trade
4 does » 2 does

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 does variation 4 does data communication ((5 trade) OR (1 trade)) development l afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology does variation 4 does data communication ((5 trade) OR (1 trade)) development l afrique.*.