Perhaps you should try some spelling variations:
"cong trinh code snippets" » "cong trinh cong snippets", "cong trinh co snippets", "cong trinh cad snippets"
"dung hung dat snippets" » "dung chung dat snippets", "dung nhung dat snippets", "dung huong dat snippets", "dung dung dat snippets", "dung vung dat snippets", "dung hung dao snippets"
"locating bug code slippers" » "locating bung code slippers", "locating bugs code slippers"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cong trinh code snippets") or ("dung hung dat snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong trinh code snippets") OR ("dung hung dat snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( cong trinh code snippets ) or ( dung hung dat snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("cong trinh code snippets") or ("dung hung dat snippets"))) or ("locating bug code slippers"))*.