Perhaps you should try some spelling variations:
conversion factor » conversion factors, conversion rate
dem developpement » de developpement, des developpements, le developpement
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
information 3 » information 2
des afrique » en afrique, de l'afrique
factor dem » factor demand, factor model, factor index
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 factor dem developpement des afrique.*.