Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"vat cua dan snippets" » "mat cua dan snippets", "bat cua dan snippets", "dat cua dan snippets", "vat cua dang snippets", "vat cua ban snippets", "vat ca dan snippets", "vat 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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vat cua dan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( vat cua dan snippets ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("vat cua dan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.