Perhaps you should try some spelling variations:
communication 3.4.4 » communication 3.3.4, communication 3.4.1, communication 2.3.4
sme development » trade development
development en » developpement en, development menu, development eco
1 interaction » 10 interaction, 17 interaction, 19 interaction
interaction a » interaction _, interaction 1, interaction 4
technology 1 » technology _
3.4.4 sme » 3.4.4 step, 3.4.4 die, 3.4.4 cce
2 true » _ true, a true, 2 tree
1 true » _ true, a true

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: "technology 1 interaction a ((2 true) OR (1 true)) communication 3.4.4 sme development en afrique.~".
• Adding a wildcard symbol may retrieve word variants: technology 1 interaction a ((2 true) OR (1 true)) communication 3.4.4 sme development en afrique.*.