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