Perhaps you should try some spelling variations:
ab developpement » au developpement, de developpement, le developpement
data conversion » land conversion, data conclusion, debt conversion
conversion from » conclusion from, conversion factor
technologies 1 » technologies _, technologies 4, technologies 2
des afrique » en afrique, de l'afrique
from ab » from a, from ad, from abcs
3 el » y el
_ el » _ eu, _ e, _ ex

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technologies 1 information ((3 el) OR (_ el)) data conversion from ab developpement des afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 1 information ((3 el) OR (_ el)) data conversion from ab developpement des afrique.*.