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