Perhaps you should try some spelling variations:
online communication » mobile communication, business communication, mobile communications
4.2 developing » 2.2 developing, 3.2 developing, 4.1 developing
developing lie » developing e, developing ai, developing ce
dark online » der online, das online, daf online
lie afrique » l afrique
about dark » about care, about art, about bank

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies _ information about dark online communication costs 4.2 developing lie afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies _ information about dark online communication costs 4.2 developing lie afrique.*.