Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"from tu hoa snippets" » "from eu hoa snippets", "from two hoa snippets", "from tu khoa snippets", "from tu hoai snippets", "from tuy hoa 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: (((("from tu 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: (((("from tu hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( from tu hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("from tu hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.