Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan moi noi snippets" » "phan mo noi snippets", "pham moi noi snippets", "phan hoi noi snippets", "phan loi noi snippets", "phan moi doi snippets", "phan moi 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: (((("phan moi noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan moi noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan moi noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan moi noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.