Perhaps you should try some spelling variations:
simulation duration » simulation relation, simulation imitation, simulation solution
ecology simulation » technology simulation, recovery simulation, policy simulation
a communications » a communication, data communications, a communicative
development li » development lid, development lie, development lin
duration 5 » duration _, duration γ, duration 0
li afrique » l afrique, en afrique
5 does » 2 does, 4 does
does a » does _
a mine » a mini, a mile, a marine
_ mine » _ mind, _ mice

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

• Performing a fuzzy search may retrieve terms with similar spellings: ecology simulation duration 5 does a communications ((a mine) OR (_ mine)) development li afrique.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ecology simulation duration 5 does a communications ((a mine) OR (_ mine)) development li afrique.*".