Perhaps you should try some spelling variations:
"dung ninh trinh snippets" » "dung ninh tinh snippets", "dung dinh trinh snippets", "dung sinh trinh snippets", "dung vinh trinh snippets", "quang ninh trinh snippets", "dung dich trinh snippets", "dung ninh trinh slippers"
"dung dat code snippets" » "dung va code snippets", "dung tai code snippets", "dung rate code snippets", "dung dat de snippets", "dung dat code slippers"
"locating bug code snippets" » "locating bug code slippers", "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 ninh trinh snippets") or ("dung dat code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung ninh trinh snippets") OR ("dung dat code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung ninh trinh snippets ) or ( dung dat code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung ninh trinh snippets") or ("dung dat code snippets"))) or ("locating bug code snippets"))*.