Perhaps you should try some spelling variations:
thanh tung » thanh cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
tung tuan » trung tuan, hung tuan, quang tuan
tuan dung » tuan duong, tran dung, tan dung
dung cong » dung trong
huy toan » huy tran, huu toan, huy hoang
ty toan » ly toan, tap toan, tam toan

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: ho ((hieu manh) OR (trieu tinh)) - thanh tung tuan dung cong ((ty toan) OR (huy toan)) cau~.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (trieu tinh)) - thanh tung tuan dung cong ((ty toan) or (huy toan)) cau*.