Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"ngu dan dan snippets" » "ngu danh dan snippets", "ngu van dan snippets", "nguoi dan dan snippets", "ngu dang dan snippets", "ngu ban dan snippets", "ngu dao dan snippets", "ngu dan 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: (((("ngu dan dan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( ngu dan dan snippets ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("ngu dan dan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.