Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam do hoan snippets" » "nam dao hoan snippets", "nam do hoang snippets", "nam do hoa snippets", "nam doi hoan snippets", "nam bo hoan 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 do hoan 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 do hoan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam do hoan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam do hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.