Perhaps you should try some spelling variations:
"basicas matematicas comics programs." » "comicas matematicas comics programs.", "benditas matematicas comics programs.", "fisica matematica comics programs.", "basicas matematicas como programs.", "basicas mathematics comic programs.", "basicas matematicas economico programs.", "basicas matematicas comics programa."
"basicas mathematics computer programas." » "business mathematics computer programas.", "basicas mathematics computer programs.", "basicas mathematics computer program.", "basicas mathematics computer programmers."

Try widening your search to All Fields.

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