Perhaps you should try some spelling variations:
called communication » based communication, scale communication, scales communication
communication 3.3 » communication _, communication a, communication 1
main developments » rail developments, major developments, macro developments
technologie 6 » technologie c, technologie 3, technologie _
a called » _ called, so called, a stalled
3.3 main » 1.3 main, 2.3 main, 4.3 main
6 rural » a rural, 2 rural, 4 rural
labor a » labor _

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

• Adding a wildcard symbol may retrieve word variants: technologie 6 rural labor a called communication 3.3 main developments _ afrique.*.