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