Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, nghiep nganh
thong cong » trong cong, tong cong, thong thong
hieu manh » chieu xanh, dieu hanh, hien hanh
canh tinh » hanh tinh, manh tinh, canh tranh
ban thanh » ban hanh, ban hang
thanh cha » thanh ha, thanh nha, thanh phan
ha thong » hoa thong, nha thong, he thong
cong ban » cong bang, cong san, cong tan
tinh ha » tinh hai, tinh hoa, tinh va

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 (hieu nganh)) - canh tinh ha thong cong ban thanh cha~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (hieu nganh)) - canh tinh ha thong cong ban thanh cha.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (hieu nganh)) - canh tinh ha thong cong ban thanh cha*.