Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
thanh trung » thanh tung
thien danh » thien anh, thien dang, thien thanh
cua thuong » cua truong, cua phuong, ca thuong
hien hanh » dieu hanh
trung cua » truong cua, trung tuan, trung cap
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cap » khan cap, thanh lap, thanh cac

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

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