Perhaps you should try some spelling variations:
land compensation » labor compensation, based compensation, fair compensation
innovation scale » innovation space, innovation small, innovation scope
models africa » zones africa, andes africa, does africa
time land » time lag, time line, time lags
2 do » _ do, 2 de, 1 do
2 co » _ co, a co, 2 c

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 _ innovation scale time land compensation ((2 do) OR (2 co)) development models africa.~".
• Adding a wildcard symbol may retrieve word variants: technology _ innovation scale time land compensation ((2 do) OR (2 co)) development models africa.*.