Perhaps you should try some spelling variations:
3.7 communication » 3.2 communication, 2.7 communication, 3.5 communication
et developpements » et developpement, des developpements, en developpement
developpements en » developpement en, developpement et, developpements de
technology rule » technology role, technology rate, technology risk
rule induction » use induction, gene induction, culture induction
induction wage » production wage, induction games, induction one
wage changes » rate changes, use changes
changes 3.7 » changes 13.7, change 3.7, changes 3.2
costs et » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology rule induction wage changes 3.7 communication costs et developpements en afrique.*.