Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam li cong snippets" » "nam bi cong snippets", "nam li song snippets", "nam lieu cong snippets", "nam lai cong snippets", "tam li cong snippets", "nam lo cong 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 li cong 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 li cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam li cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam li cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.