Perhaps you should try some spelling variations:
"cong trinh code snippets" » "cong trinh cong snippets", "cong trinh co snippets", "cong trinh cad snippets"
"dung dong dat slippers" » "dung cong dat slippers", "vung dong dat slippers", "dung trong dat slippers", "dung dong vat slippers", "dung dung dat slippers", "dung dong ha slippers", "dung dong dat slippery", "dung dong dat grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code 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: (((("cong trinh code snippets") OR ("dung dong dat slippers"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( cong trinh code snippets ) or ( dung dong dat slippers ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("cong trinh code snippets") or ("dung dong dat slippers"))) or ("locating bug code snippets"))*.