Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
thieu xanh » chieu xanh, hieu manh, thien danh
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
thien anh » thien danh, tien anh, thien thanh
tranh cua » doanh cua, manh cua
van toan » van tuan, van tan, van thanh
toan tap » toan ban

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: hoc ((thieu xanh) OR (thien anh)) - hanh tranh cua ((nhung cong) OR (thong cong)) van toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (thien anh)) - hanh tranh cua ((nhung cong) or (thong cong)) van toan tap~".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (thien anh)) - hanh tranh cua ((nhung cong) or (thong cong)) van toan tap*.