Perhaps you should try some spelling variations:
thanh trung » thanh tung
thuong cong » thong cong, thuong con, thuong dong
thien danh » thien anh, thien dang, thien thanh
cua thuong » cua truong, cua phuong, ca thuong
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung cua » truong cua, trung tuan, trung cap
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan tap » toan ban

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 (hieu manh)) - thanh trung cua thuong cong tac toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien danh) OR (hieu manh)) - thanh trung cua thuong cong tac toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien danh) or (hieu manh)) - thanh trung cua thuong cong tac toan tap*.