Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"c can zhang snippets" » "c yan zhang snippets", "c cang thang snippets", "c yang zhang snippets", "co can zhang snippets", "c ban zhang snippets", "c van zhang snippets", "c can zhang 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: (((("c can 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: (((("c can zhang snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( c can zhang snippets ) or ( python using java snippets ))) or ( locating bug code snippets ))*.