Perhaps you should try some spelling variations:
4 communication » 3 communication, 5.4 communication, de communication
development ds » development d, development does, development desd
de variation » der variation, die variation, does variation
apologie de » apologie des, apologia de, apologien der
variation a » variation _, variation 6, variation 5
ds afrique » en afrique, l afrique, de l'afrique
a does » 2 does, 4 does, 1 does
does 4 » does _, does a, does e
2 sme » _ sme, 2 mme, 3 sme
2 sie » 12 sie, 2 site, _ sie

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: "apologie de variation a does 4 communication ((2 sme) OR (2 sie)) development ds afrique.~".
• Adding a wildcard symbol may retrieve word variants: apologie de variation a does 4 communication ((2 sme) OR (2 sie)) development ds afrique.*.