Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung nam cat snippets" » "dong nam cat snippets", "dung lam cat snippets", "sung nam cat snippets", "dung nam cao snippets", "dung nam cac snippets", "dung am cat 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: (((("dung nam cat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung nam cat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung nam cat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung nam cat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.