Perhaps you should try some spelling variations:
smes development » sme development, sms development, pme's development
development en » developpement en, development menu, development eco
variation der » variation des, variation bei, variation _
den mass » den mann, den mso
en masse » en classe, de masse
a smes » _ smes, 8 smes

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 der ((den mass) OR (en masse)) communication a smes development en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology _ variation der ((den mass) OR (en masse)) communication a smes development en afrique.*.