Perhaps you should try some spelling variations:
"dung danh trinh snippets" » "dung hanh trinh snippets", "dung anh trinh snippets", "dung dan trinh snippets", "dung doanh trinh snippets", "dung dang trinh snippets", "dung danh trinh slippers"
"dung ung code snippets" » "dung trung code snippets", "dung quang code snippets", "dung chung code snippets", "dung ung co snippets", "dung ung 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"dung ung code snippets\") OR (\"dung danh trinh snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dung ung code snippets ) OR ( dung danh trinh snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung ung code snippets") OR ("dung danh trinh snippets"))) OR ("locating bug code snippets"))*.