Perhaps you should try some spelling variations:
minoria religiosas » minorias religiosas, minoria religiosa, historias religiosas
basica instituto » mexico instituto, habana instituto, iscr instituto
manuales basica » manual basico, manual basic
superior del » superior de, superior en
superior y » superior de, superior en

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

• Performing a fuzzy search may retrieve terms with similar spellings: manuales basica instituto ((superior del) OR (superior y)) minoria religiosas.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "manuales basica instituto ((superior del) OR (superior y)) minoria religiosas.".
• Adding a wildcard symbol may retrieve word variants: manuales basica instituto ((superior del) OR (superior y)) minoria religiosas.*.