Perhaps you should try some spelling variations:
communication phase » communication case, communication based, communication paper
trade information » price information, private information, trade integration
2.2 communication » 2.3 communication, 3.2 communication, 2.7 communication
technology trade » technology trends, technology transfer, technology transfers
information data » information d820, information database, information databases
du developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
data price » data primer, data pre, data rich
price 2.2 » price 2.3, price 2.4, price 3.2
phase du » phase de, phase der, phase des

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

• Adding a wildcard symbol may retrieve word variants: technology trade information data price 2.2 communication phase du developpement en afrique.*.