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