Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang noi den snippets" » "nang noi den snippets", "dang khoi den snippets", "dang ngoc den snippets", "dang hoi den snippets", "dang moi den snippets", "dang nhi den 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: (((("dang noi den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang noi den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang noi den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang noi den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.