Perhaps you should try some spelling variations:
"Recursos un instrumento psico-pedagógicos ;" » "Recursos un instrumentos psico-pedagógicos ;" (Expand Search), "Recursos un instrumento publico-pedagógicos ;" (Expand Search), "Recursos un instrumento politico-pedagógicos ;" (Expand Search), "Recursos como instrumento psico-pedagógicos ;" (Expand Search), "Recursos los instrumentos psico-pedagógicos ;" (Expand Search)
recursos un » recursos en (Expand Search), recursos de (Expand Search), recursos y (Expand Search)
pedagogicos » pedagogico (Expand Search), pedagogicas (Expand Search), pedagogical (Expand Search)

Try widening your search to All Fields.

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

• Removing quotes may allow a broader search: Recursos un instrumento psico-pedagógicos ;.