Perhaps you should try some spelling variations:
communication series » communication services, communication systems, communication skills
technologies based » technologies used, technology based, technologies a
based formulacion » basic formulation, case formulation, based simulation
developpements en » developpement en, developpement et, developpements de
e developpements » et developpements, des developpements, de developpement
formulacion de » formulation des, formacion de, formulation _
series e » series _, series 1, series 2
de does » der does, do does, one does

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

• Adding a wildcard symbol may retrieve word variants: technologies based formulacion de does _ communication series e developpements en afrique.*.