Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quan chu led snippets" » "quan khu led snippets", "quan cau led snippets", "quan che led snippets", "quan cho led snippets", "quan chul lee 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: (((("quan chu led snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan chu led snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quan chu led snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quan chu led snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.