Perhaps you should try some spelling variations:
2.1 transformation » 2.1 transformations, 2.2 transformation, 2.3 transformation
competition effect » competitive effects, competition imperfect
technologies 2.1 » technologies _, technologies 4, technologies a
transformation e » transformation et, transformation _, transformation a
au developpement » du developpement, de developpement, le developpement
developpement de » developpement des, developpement durable
effect au » effect a, effect can, effect gas
de africa » does africa, de america, use africa
e 3 » es 3, eu 3

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.1 transformation e 3 through competition effect au developpement de africa.*.