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