Perhaps you should try some spelling variations:
"lochating bug code snippets" » "locating bug code snippets", "lochating bug core snippets"
"python using java snippets" » "python using data snippets"
"doi cua du snippets" » "hoi cua du snippets", "dai cua du snippets", "dong cua du snippets", "doi cua duc snippets", "doi cua ndu snippets", "doi cua su 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: (((("doi cua du snippets") OR ("python using java snippets"))) OR ("lochating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( doi cua du snippets ) or ( python using java snippets ))) or ( lochating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("doi cua du snippets") or ("python using java snippets"))) or ("lochating bug code snippets"))*.