Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"yun wang xin snippets" » "yu wang xin snippets", "yun pang xin snippets", "ying wang xin snippets", "yun zhang xin snippets", "yun wang dan snippets", "yun wang jun snippets", "yun wang xin 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: (((("yun wang xin snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("yun wang xin snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( yun wang xin snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("yun wang xin snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.