Perhaps you should try some spelling variations:
smes development » sme development, sms development, pme's development
4 communication » 3 communication, 5.4 communication, de communication
modes variation » does variation, more variation, modern variations
development et » development east, developpement et, development eco
variation 3 » variation _, variation 6, variation 5
et afrique » en afrique, l afrique
a smes » _ smes, 8 smes
3 der » _ der, 2 der
der 4 » der _, der e, der a

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (topology OR typology) modes variation 3 der 4 communication a smes development et afrique.~.
• Adding a wildcard symbol may retrieve word variants: (topology or typology) modes variation 3 der 4 communication a smes development et afrique.*.