Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu moi den snippets" » "cho moi den snippets", "thu moi den snippets", "chat moi den snippets", "chu hoi den snippets", "chu moi dan snippets", "chu moi de 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: (((("chu moi 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: (((("chu moi den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu moi den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu moi den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.