Perhaps you should try some spelling variations:
technology private » technology preface, technology rate, technology related
information needs » information networks
development co » development case, development china
costs human » sts human, ghosts humans, beasts human
co afrique » en afrique, l afrique
needs de » needs men, needs one, needs _

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

• Performing a fuzzy search may retrieve terms with similar spellings: technology private information needs de _ communication costs human development co afrique.~.
• Adding a wildcard symbol may retrieve word variants: technology private information needs de _ communication costs human development co afrique.*.