Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi cong mot snippets" » "thi cong mot snippets", "cho cong mot snippets", "phi cong mot snippets", "chi cong dot snippets", "chi trong mot snippets", "chi cong mong 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: (((("chi cong mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chi cong mot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi cong mot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi cong mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.