Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, manh trung
hieu nganh » vien nganh, hiem ngan, nghiep nganh
vang thanh » van thanh, dang thanh, tang thanh
hieu manh » chieu xanh, dieu hanh, hieu van
hien hanh » dieu hanh
trung dap » trung cap, trung dai, trung dam
dung cong » dung trong
cong vang » cong lang, cong quang, cong ngang
thanh cau » thanh chau, thanh mau, nhanh cau
dap dung » ap dung, dan dung, dap ung

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 ((((hieu nganh) OR (hieu manh))) OR (hien hanh)) - hanh trung dap dung cong vang thanh cau~.
• Adding a wildcard symbol may retrieve word variants: doc ((((hieu nganh) or (hieu manh))) or (hien hanh)) - hanh trung dap dung cong vang thanh cau*.