Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat dao doi snippets" » "hat dan doi snippets", "hat dam doi snippets", "hat do doi snippets", "hat dao do snippets", "hat dao noi snippets", "hat dao voi 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 dao doi 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 dao doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat dao doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat dao doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.