Perhaps you should try some spelling variations:
manuales matematica » manuales matematicas
imagenes tecnicas » imagenes medicas
matematica y » matematica en, matematicas en
islam arte » islas arte
de isaias » de indias, de isaac
e islas » el islam
y islam » e islam, _ islam, el islam

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( imagenes tecnicas ((de isaias) or (e islas)) arte ; ) or ( manuales matematica y islam arte ; ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( imagenes tecnicas ((de isaias) OR (e islas)) arte ; ) OR ( manuales matematica y islam arte ; )).
• Adding a wildcard symbol may retrieve word variants: (( imagenes tecnicas ((de isaias) or (e islas)) arte ; ) or ( manuales matematica y islam arte ; ))*.