Perhaps you should try some spelling variations:
"dung cong data snippets" » "dung trong data snippets", "dung dong dat snippets", "dung cong dan snippets", "dung cong danh snippets", "dung chong data snippets", "dung cuang data snippets", "dung vonng data snippets", "dung cong data slippers"
"dung co code snippets" » "dung cho code snippets", "dung cua code snippets", "dung von code snippets", "dung cfd code snippets", "dung co 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: (((("dung cong data snippets") or ("dung co code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cong data snippets") OR ("dung co code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cong data snippets ) or ( dung co code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cong data snippets") or ("dung co code snippets"))) or ("locating bug code snippets"))*.