Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
thanh tra » thanh toan, thanh hoa
cong cong » cong dong, trong cong, dung cong
dang cong » dung cong
toc hieu » toc thieu, doc hieu, hoc thieu
tra xuan » tran xuan, tra quan, tran tuan
dang dan » dang dang, dang van, dung dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc hieu manh - thanh tra xuan ((cong cong) or (dang cong)) dang dan ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu manh - thanh tra xuan ((cong cong) OR (dang cong)) dang dan ca*.