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 a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
information 3 » information 2
from leur » from laura, from leaf, from left
e land » use land, die land
3 e » 3 le, 3 el

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

• Adding a wildcard symbol may retrieve word variants: technologies a information 3 e land conversion from leur developpement de l'afrique.*.