Perhaps you should try some spelling variations:
communication phase » communication case, communication based, communication paper
3.1 communication » 3.1 communications, 3.2 communication, 3.5 communication
des developpement » des developpements, de developpement, le developpement
developpement du » developpement de, developpement des, developpement et
technology tax » technology than, technology trap, technology tpm
tax inflation » taxes inflation, has inflation, tax information
du afrique » en afrique, l afrique, de l'afrique
rate rule » rate rules, trade rule
phase des » phasen des, phase der
rule 3.1 » rule 13.1, rule 3.2, rule 3.3

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

• Adding a wildcard symbol may retrieve word variants: technology tax inflation rate rule 3.1 communication phase des developpement du afrique.*.