Perhaps you should try some spelling variations:
"dung vbug code snippets" » "dung vung code snippets", "dung vbung code snippets", "dung vbugs code snippets"
"dung dan cong snippets" » "dung dat cong snippets", "dung san cong snippets", "tung dan cong snippets", "dung dang cong snippets", "dung van cong snippets", "dung dan dong snippets"
"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.

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