Perhaps you should try some spelling variations:
"dung datu code snippets" » "dung dat code snippets", "dung dau code snippets", "dung dan code snippets", "dung rate code snippets"
"dung de code slippers" » "dung he code slippers", "dung dat code slippers"
"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.

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