Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat luan cay snippets" » "dan luan cay snippets", "dau luan cay snippets", "dat quang cay snippets", "dat luan xay snippets", "dat luan day snippets", "dat luan chat 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 cay 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 cay snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat luan cay snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat luan cay snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.