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