Perhaps you should try some spelling variations:
luan chung » luan chinh
bien tinh » bi tinh, yen tinh, diep tinh
hanh tung » thanh tung, manh tung, hanh dung
hanh mang » nhanh mang, hanh trang, nhanh lang
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
khan cap » khan ap, than cap, khoan cam
ho bien » pho bien, hoa bien, so bien

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho bien tinh - ((hanh tung) or (hanh mang)) luan chung ((cong tan) or (cong san)) khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho bien tinh - ((hanh tung) OR (hanh mang)) luan chung ((cong tan) OR (cong san)) khan cap.
• Adding a wildcard symbol may retrieve word variants: ho bien tinh - ((hanh tung) or (hanh mang)) luan chung ((cong tan) or (cong san)) khan cap*.