Perhaps you should try some spelling variations:
people communication » complex communication, mobile communication, remote communication
rail developments » rail development, rapid developments, rate developments
communication 1 » communication _, communication a, communication 3
technologie c » technologies 2, technologies 3, technologies 1
labor du » labor das, labor day, labor die
labor do » labor das, labor day, labor die
c rural » a rural, 2 rural, 4 rural
1 rail » _ rail, a rail

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: "technologie c rural ((labor du) OR (labor do)) people communication 1 rail developments _ afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologie c rural ((labor du) OR (labor do)) people communication 1 rail developments _ afrique.*.