Perhaps you should try some spelling variations:
4.2 communication » 4.2 communications, 3.2 communication, 4.1 communication
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
communication 3 » communication _, communication a
technology use » technology 1, technology 2.2, technology 3
use inflation » push inflation, und inflation, die inflation
rate rules » trade rules, water rules, wage rules
rules 4.2 » rules 3.2, rules 4.3
3 le » 3 les, 3 la, 1 le

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

• Adding a wildcard symbol may retrieve word variants: technology use inflation rate rules 4.2 communication 3 le developpement en afrique.*.