Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc quan che snippets" » "luc luan che snippets", "tac quan che snippets", "qua quan che snippets", "luc quan he snippets", "luc han che snippets", "luc quan ha 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: (((("luc quan che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc quan che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc quan che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc quan che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.