Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"shi yu zhang snippets" » "shi you zhang snippets", "shi yu hang snippets", "shi yuan zhang snippets", "zhi yu zhang snippets", "shi yu zhang slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

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