Perhaps you should try some spelling variations:
"basicas matematicas computer program." » "basicas mathematics computer program.", "basicas matematicas como program.", "basicas matematicas comics program.", "comicas matematicas computer program.", "benditas matematicas computer program.", "fisica matematica computer program.", "basicas matematicas computer programs."
"exactas matematicas units programming." » "exactas matematicas judith programming.", "exactas matematicas una programming.", "exactas matematicas un programming."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("basicas matematicas computer program.") or ("exactas matematicas units programming."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("basicas matematicas computer program.") OR ("exactas matematicas units programming.")).
• Removing quotes may allow a broader search: (( basicas matematicas computer program. ) or ( exactas matematicas units programming. )).
• Adding a wildcard symbol may retrieve word variants: (("basicas matematicas computer program.") or ("exactas matematicas units programming."))*.