Perhaps you should try some spelling variations:
thanh trung » thanh tung
thuong cong » thong cong, thuong con, thuong dong
cua thuong » cua truong, cua phuong, ca thuong
hien danh » thien danh, hien hanh, hien nhanh
trung cua » truong cua, trung tuan, trung cap
dan khanh » dang khanh, van khanh, dat khanh
dan hanh » dang hanh, dan thanh, ban hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien danh - thanh trung cua thuong cong ((dan hanh) or (dan khanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien danh - thanh trung cua thuong cong ((dan hanh) OR (dan khanh)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien danh - thanh trung cua thuong cong ((dan hanh) or (dan khanh)) cau*.