Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"com duoi cao snippets" » "co duoc cao snippets", "dam duoi cao snippets", "nam duoi cao snippets", "com duoi ca snippets", "com nguoi cao snippets", "com duong cao 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: (((("com duoi cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("com duoi cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( com duoi cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("com duoi cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.