Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat dan choi snippets" » "hat dan hoi snippets", "hat dam choi snippets", "hat dan cho snippets", "hat van choi snippets", "mat dan choi snippets", "nhat danh 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: (((("hat 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: (((("hat dan choi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat dan choi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat dan choi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.