Perhaps you should try some spelling variations:
"fisica mathematics computer programming." » "fisica mathematics computer programs.", "fisica matematica computer programming.", "fisico matematica computer programming.", "fisico matematicas computer programming.", "fisica mathematics computer programsming."
"logico matematica computer program." » "logica matematica computer program.", "logico matematico computer program.", "fisico matematica computer program.", "logico matematica computer programs."

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