Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mat dan choi snippets" » "mat dan hoi snippets", "mat dam choi snippets", "mat dan cho snippets", "hat dan choi snippets", "luat dan choi snippets", "mat bang choi snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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: (((("mat dan choi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mat dan choi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mat dan choi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mat dan choi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.