Perhaps you should try some spelling variations:
ads communication » mass communication, c's communication, lea's communication
development de » development d, development ds, developpement de
variation per » variation der, variation over, variation des
de afrique » de l'afrique, en afrique, l afrique
per job » der job
job ads » job aids, job ad
1 sme » _ sme, 5 sme
3 sme » 3 same, _ sme, 3 smt

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 _ variation per job ads communication ((1 sme) OR (3 sme)) development de afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology _ variation per job ads communication ((1 sme) OR (3 sme)) development de afrique.*.