Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan tap hoa snippets" » "toan tap hoa snippets", "han tap hoa snippets", "tan tat hoa snippets", "tan tap hop snippets", "tan tap doan snippets", "tan 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: (((("tan 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: (((("tan tap hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan tap hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan tap hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.