Perhaps you should try some spelling variations:
low communication » how communication, new communication, de communication
technologies 4.2 » technologies 3.2, technologies 4.1, technologies 4.5
12.4 developing » 1.4 developing, 2.2 developing, 1.3 developing
developing av » developing a, developing ai, developing amp
contents a » contents 1, contents _, contents i
costs 12.4 » costs 11.4, costs 12.3, costs 2.4
av africa » v africa, iv africa, can africa
a low » _ low

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

• Adding a wildcard symbol may retrieve word variants: technologies 4.2 information contents a low communication costs 12.4 developing av africa.*.