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