Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat luan cho snippets" » "dan luan cho snippets", "dau luan cho snippets", "dat quang cho snippets", "dat luan chi snippets", "dat luan che snippets", "dat luan pho 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: (((("dat luan cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dat luan cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat luan cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat luan cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.