Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"juan liu chi snippets" » "juan luis chi snippets", "quan li chi snippets", "jin liu chi snippets", "juan lieu chiu snippets", "juan linh chi snippets", "juan hieu chi 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: (((("juan liu chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("juan liu chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( juan liu chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("juan liu chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.