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