Perhaps you should try some spelling variations:
"ninh dinh code snippets" » "ninh binh code snippets", "binh dinh code snippets", "hinh dinh code snippets", "ninh dinh che snippets", "ninh dinh cong snippets", "ninh dinh hoe snippets", "ninh dinh code slippers"
"dung cac code snippets" » "luong cac code snippets", "dung cho code snippets", "dung tai code snippets", "dung cac cong snippets", "dung cac co snippets", "dung cac che snippets", "dung cac code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

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

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