Perhaps you should try some spelling variations:
communications series » communication series, communications services, communication services
development egypt » development east, development europe, development effect
technologies co » technologies _, technologies 4, technologies 2
formation phase » formation chapter
co formation » clot formation, n2o formation, non formation
phase des » phasen des, phase der
des data » das data, dhs data, dns data

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies co formation phase des data communications series _ development egypt afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies co formation phase des data communications series _ development egypt afrique.*.