Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi tap hoa snippets" » "phi thap hoa snippets", "pha tap hoa snippets", "phi tai hoa snippets", "phi tap hop snippets", "phi tap doan snippets", "phi tap 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: (((("phi tap hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phi tap hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi tap hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi tap hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.