Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"tu dau luan snippets" » "tu dan luan snippets", "tu dat luan snippets", "tu khau luan snippets", "ty dau luan snippets", "te dau luan 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: (((("tu dau luan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( tu dau luan snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("tu dau luan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.