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