Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat van toi snippets" » "hoat van toi snippets", "ha van toi snippets", "hai van toi snippets", "hat van tai snippets", "hat van thi snippets", "hat van toan 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 van toi 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 van toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat van toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat van toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.