Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dao qing li snippets" » "dao quang li snippets", "dao dong li snippets", "dao minh li snippets", "dao qing liu snippets", "dao ying li snippets", "dao qiong liu snippets", "dao qing li 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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao qing li snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( dao qing li snippets ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dao qing li snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.