Perhaps you should try some spelling variations:
information centers » information contents, information officers
technologies value » technologies volume, technologies varies, technologies case
value information » values information, valuable information, care information
de communication » mobile communication, online communication
4.1 developing » 3.1 developing, 4 developing, 3.3 developing
developing e » developing _, developing a, developing east
centers a » centers _, center a, enters a
costs 4.1 » costs 4.2, costs 4.4, costs 4.3
e africa » em africa, de africa, eu africa
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: technologies value information centers a de communication costs 4.1 developing e africa.*.