Perhaps you should try some spelling variations:
technology leaders » technology readiness, technology trade, technology users
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
leaders section » leadership section, leaders decision, borders section
developing du » developing _, developing a, developing e
section case » sectional case, section based, sector case
4 developing » 3 developing
case rates » base rates, wage rates, dose rates
du afrique » en afrique, l afrique, de l'afrique
rates 4.1 » rates 4.2, rates 4.5, rates 4.3
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology leaders section case rates 4.1 communication costs 4 developing du afrique.*.