Perhaps you should try some spelling variations:
thanh tung » thanh cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hiem ngan » kim ngan, viem gan
cua trong » cua truong, cua trung, qua trong
tung cua » trung cua, tuong cua, dung cua
cong san » cong tac
than cau » toan cau, phan cau, than cap
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 ((hieu manh) or (hiem ngan)) - thanh tung cua trong cong san ((than cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (hiem ngan)) - thanh tung cua trong cong san ((than cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (hiem ngan)) - thanh tung cua trong cong san ((than cau) or (toan tap))*.