Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"toc cua dan snippets" » "hoc cua dan snippets", "tac cua dan snippets", "doc cua dan snippets", "toc cua dang snippets", "toc cua ban snippets", "toc ca dan snippets", "toc cua dan slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("toc cua dan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toc cua dan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( toc cua dan snippets ) or ( python using java snippets ))) or ( locating bug code snippets ))*.