Perhaps you should try some spelling variations:
"locating bug code slippers" » "locating bug code snippets", "locating bung code slippers", "locating bugs code slippers"
"python using java snippets" » "python using data snippets"
"do bo zhang snippets" » "do tao zhang snippets", "do bao thang snippets", "do bin zhang snippets", "doi bo zhang 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: (((("python using java snippets") OR ("do bo zhang snippets"))) OR ("locating bug code slippers"))~.
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( do bo zhang snippets ))) or ( locating bug code slippers ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("do bo zhang snippets"))) or ("locating bug code slippers"))*.