Perhaps you should try some spelling variations:
"dung lieu da snippets" » "dung hieu da snippets", "dung tieu da snippets", "dung viet da snippets", "dung lieu dao snippets", "dung lieu dai snippets", "dung lieu dia snippets"
"dung cac code snippets" » "luong cac code snippets", "dung cho code snippets", "dung tai code snippets", "dung cac cong snippets", "dung cac co snippets", "dung cac che 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 lieu da snippets\") OR (\"dung cac code snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dung lieu da snippets ) OR ( dung cac code snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung lieu da snippets") OR ("dung cac code snippets"))) OR ("locating bug code snippets"))*.