Perhaps you should try some spelling variations:
thieu nganh » hieu nganh, trien nganh, nghiep nganh
thanh trung » thanh tung
trung van » truong van, trong van, trung va
dong cong » duong cong, dung cong, dang cong
tran hanh » tran thanh, tran khanh, tran manh
dang hanh » dang thanh, ban hanh, dang van

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu nganh - thanh trung van dong cong ((tran hanh) or (dang hanh)) ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu nganh - thanh trung van dong cong ((tran hanh) OR (dang hanh)) ca*.