Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam duoi cho snippets" » "nam duoc cho snippets", "nam doi cho snippets", "dam duoi cho snippets", "nam nguoi cho snippets", "nam duoi chin snippets", "nam dung cho 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: (((("nam duoi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nam duoi cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam duoi cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam duoi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.