Perhaps you should try some spelling variations:
information studies » information sources, information series, information services
communication phase » communication case, communication based, communication paper
2.7 communication » 2.3 communication, 3.2 communication, 2 communication
des developpement » des developpements, de developpement, le developpement
developpement de » developpement des, developpement durable
technology 2 » technology _, technology 1, technology 3
studies ring » studies during, studies caring, studies using
de afrique » de l'afrique, en afrique, l afrique
phase des » phasen des, phase der
ring 2.7 » ring 2.3, ring 12.2, ring 27.2

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

• Adding a wildcard symbol may retrieve word variants: technology 2 information studies ring 2.7 communication phase des developpement de afrique.*.