Perhaps you should try some spelling variations:
technology leaders » technology readiness, technology trade, technology users
2.3 communication » 3.2 communication, de communication, 4 communication
developpement en » developpement et, developpement des, developpement de
leaders section » leadership section, leaders decision, borders section
section wage » sector wage, section case, section based
wage rate » wage rates
rate 2.3 » rates 2.3, rate 2.4, rate 4.3

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

• Adding a wildcard symbol may retrieve word variants: technology leaders section wage rate 2.3 communication costs _ developpement en afrique.*.