Perhaps you should try some spelling variations:
"trinh tai code snippets" » "trinh toan code snippets", "trinh tu code snippets", "trinh han code snippets", "trinh tai cong snippets", "trinh tai co snippets", "trinh tai hoe snippets", "trinh tai code slippers"
"dung nhan code snippets" » "dung luan code snippets", "dung nhan co snippets", "dung nhan con snippets", "dung nhan 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: "((((\"trinh tai code snippets\") OR (\"dung nhan code snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( trinh tai code snippets ) OR ( dung nhan code snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("trinh tai code snippets") OR ("dung nhan code snippets"))) OR ("locating bug code snippets"))*.