Perhaps you should try some spelling variations:
"dung nhan dat snippets" » "dung luan dat snippets", "dung nhan dan snippets", "dung nhan vat snippets", "dung nhan dai snippets", "dung nhan dat slippers"
"dung vbug code snippets" » "dung vung code snippets", "dung vbug code slippers", "dung vbung code snippets", "dung vbugs code snippets"
"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 nhan dat snippets\") OR (\"dung vbug code snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dung nhan dat snippets ) OR ( dung vbug code snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung nhan dat snippets") OR ("dung vbug code snippets"))) OR ("locating bug code snippets"))*.