Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc cac don snippets" » "duoc cac don snippets", "tuc cac don snippets", "muc cac don snippets", "duc cac dan snippets", "duc cac mon snippets", "duc cac doanh 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: (((("duc cac don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc cac don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc cac don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc cac don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.