Perhaps you should try some spelling variations:
"computer graphics computer programming." » "computer graphics computer programs.", "computer graphics computer program.", "computer graphic computer programming."
"computer practice computer programmers." » "computer practice computer programs.", "computer practice computers programming.", "computer practice computer program.", "computer interactive 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: (("computer graphics computer programming.") or ("computer practice computer programmers."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("computer graphics computer programming.") OR ("computer practice computer programmers.")).
• Removing quotes may allow a broader search: (( computer graphics computer programming. ) or ( computer practice computer programmers. )).
• Adding a wildcard symbol may retrieve word variants: (("computer graphics computer programming.") or ("computer practice computer programmers."))*.