Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java slippery" » "python using data slippery", "python using java slippers"
"cao ket dan snippets" » "co ket dan snippets", "cao ket doan snippets", "cao ke dan snippets", "cao ket van 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: (((("cao ket dan snippets") OR ("python using java slippery"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( cao ket dan snippets ) or ( python using java slippery ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("cao ket dan snippets") or ("python using java slippery"))) or ("locating bug core snippets"))*.