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