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