Perhaps you should try some spelling variations:
"dung trong code snippets" » "dung trong cong snippets", "dung trong co snippets", "dung trong che snippets", "dung trong code slippers"
"quan doi code snippets" » "quan tri code snippets", "quan li code snippets", "quan doi cong snippets", "quan doi co snippets", "quan doi de snippets", "quan doi 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 trong code snippets\") OR (\"quan doi code snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dung trong code snippets ) OR ( quan doi code snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung trong code snippets") OR ("quan doi code snippets"))) OR ("locating bug code snippets"))*.