Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, manh trung
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu manh » hieu nganh, hien hanh, hieu van
dung cong » dung trong
trung ap » trung cap, trung lap, trung tam
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cap » khan cap, thanh lap, thanh cac
ap dung » xay dung, van dung

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((chieu xanh) OR (((hieu manh) OR (dieu hanh)))) - hanh trung ap dung cong tan than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((chieu xanh) or (((hieu manh) OR (dieu hanh)))) - hanh trung ap dung cong tan than cap~".
• Adding a wildcard symbol may retrieve word variants: doc ((chieu xanh) or (((hieu manh) OR (dieu hanh)))) - hanh trung ap dung cong tan than cap*.