Perhaps you should try some spelling variations:
"dung cacfd code snippets" » "dung cac code snippets", "dung cfd code snippets", "dung cacfd code slippers"
"xuong len code snippets" » "vuong le code snippets", "xuong san code snippets", "xuong lbm code snippets", "xuong len con snippets", "xuong len cong snippets", "xuong len 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 cacfd code snippets") or ("xuong len code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cacfd code snippets") OR ("xuong len code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cacfd code snippets ) or ( xuong len code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cacfd code snippets") or ("xuong len code snippets"))) or ("locating bug code snippets"))*.