Perhaps you should try some spelling variations:
leur developpement » le developpement, deux developpements, de developpement
developpement de » developpement des, developpement durable
conversion from » conclusion from, conversion factor
technologies 4 » technologies _
4 information » 2 information, 1 information
information 2 » information 3
from leur » from laura, from leaf, from left
e land » use land, die land
2 e » 2 de, 2 re, 2 le

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information 2 e land conversion from leur developpement de l'afrique.*.