Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chao xu do snippets" » "chao tu do snippets", "chao xa do snippets", "chao xu co snippets", "cho xu do snippets", "cao xu do snippets", "chat xu do 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: (((("chao xu do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chao xu do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chao xu do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chao xu do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.