Perhaps you should try some spelling variations:
"basicas mathematics computer program." » "basicas matematicas computer program.", "business mathematics computer program.", "basicas mathematics computer programs."
"comicas matematicas web programming." » "basicas matematicas web programming.", "ciencias matematicas web programming.", "logica matematica web programming.", "comicas matematicas en programming.", "comicas matematicas de programming.", "comicas matematicas e programming.", "comicas matematicas web programacion."

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 program.") or ("comicas matematicas web programming."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("basicas mathematics computer program.") OR ("comicas matematicas web programming.")).
• Removing quotes may allow a broader search: (( basicas mathematics computer program. ) or ( comicas matematicas web programming. )).
• Adding a wildcard symbol may retrieve word variants: (("basicas mathematics computer program.") or ("comicas matematicas web programming."))*.