Perhaps you should try some spelling variations:
sme development » trade development
communication 1 » communication _, communication a, communication 3
typologies 3.2 » typologies 4.2, typologies 3.2.1, typologies 2.3
development et » development east, developpement et, development eco
3.2 variation » 3.2 variations, 3.3 variation, 2.2 variation
et afrique » en afrique, l afrique
term mass » term biomass
dem mass » dem mis
1 sme » _ sme, 3 sme, 5 sme

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: "typologies 3.2 variation _ ((dem mass) OR (term mass)) communication 1 sme development et afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologies 3.2 variation _ ((dem mass) OR (term mass)) communication 1 sme development et afrique.*.