Perhaps you should try some spelling variations:
"basicas mathematics computer programming." » "basicas mathematics computer programs.", "basicas matematicas computer programming.", "business mathematics computer programming.", "basicas mathematics computer programsming."
"exactas matematicas computer program." » "exactas matematicas como program.", "exactas matematicas comics program.", "exactas matematicas computer programs."

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

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