Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau toan cao snippets" » "dan toan cao snippets", "dang toan cao snippets", "dau tranh cao snippets", "dau toan ban snippets", "dau toan tap 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: (((("dau toan 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: (((("dau toan cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau toan cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau toan cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.