Perhaps you should try some spelling variations:
rural communications » oral communication, rural telecommunications, cultural communications
der variations » der variation, 1er variations, ier variations
development en » developpement en, development menu, development eco
typology der » typologie der, typologien der, typologie des
fires rural » firms rural, firm rural, lives rural
a sme » _ sme, 5 sme, a see
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 der variations _ fires rural communications ((a sme) OR (3 sme)) development en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology der variations _ fires rural communications ((a sme) OR (3 sme)) development en afrique.*.