Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat quan doc snippets" » "hai quan doc snippets", "chat quang doc snippets", "thuat quan doc snippets", "hat quan doi snippets", "hat quan dac snippets", "hat quan doan 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 quan doc 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 quan doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat quan doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat quan doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.