Perhaps you should try some spelling variations:
"fisica mathematics computer program." » "fisica matematica computer program.", "fisico matematicas computer program.", "design mathematics computer program.", "fisica mathematics computer programs."
"fisico matematica control programming." » "fisico matematica general programming.", "fisico matematica como programming.", "fisico matematicas control programming.", "fisica matematica control programming.", "logico matematica control programming."

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