Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"lua duc tan snippets" » "cua duc tan snippets", "luu duc tan snippets", "luat duoc tan snippets", "lua duc tran snippets", "lua duc toan snippets", "lua duc than 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: (((("lua duc tan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( lua duc tan snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("lua duc tan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.