Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"yan zhang ly snippets" » "yang zhang ly snippets", "ban hang ly snippets", "van khang ly snippets", "yan hang ly snippets", "yan bang ly snippets", "yan thong ly snippets", "yan zhang ly 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: (((("yan zhang ly snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("yan zhang ly snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( yan zhang ly snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("yan zhang ly snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.