Perhaps you should try some spelling variations:
integration rights » integration eight, integration insights, integration regimes
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
developpement de » developpement des, developpement durable
tax integration » tax interaction, data integration, die integration
technology tax » technology than, technology trap, technology tpm
rights treaty » rights treaties
treaty 6.2 » treaty 4.1
de afrique » de l'afrique, en afrique, l afrique

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

• Adding a wildcard symbol may retrieve word variants: technology tax integration rights treaty 6.2 communication costs _ developpement de afrique.*.