Perhaps you should try some spelling variations:
"basicas mathematics computer programmers." » "basicas mathematics computer programs.", "basicas mathematics computer programming.", "basicas mathematics computers programming.", "basicas matematicas computer programmers.", "business mathematics computer programmers."
"ciencias mecanica como programs." » "ciencias tecnicas como programs.", "ciencia tecnica como programs.", "ciencias medica como programs.", "ciencias mecanica con programs.", "ciencias organica como programs.", "ciencias mecanica por programs.", "ciencias mecanica como programa.", "ciencias mecanica como programar.", "ciencias mecanica campo programa."

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