Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, thien anh, thien danh
thanh tung » thanh cong
cua thuong » cua truong, cua phuong, ca thuong
thuong con » thuong dong, truong cong, thong cong
hieu manh » chieu xanh, hieu nganh, hien hanh
manh toan » thanh toan, anh tuan, tinh toan
tung cua » trung cua, tuong cua, dung cua
con manh » cong danh, doan manh, ho manh
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 (((hieu manh) OR (dieu hanh)))) - thanh tung cua thuong con manh toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (((hieu manh) OR (dieu hanh)))) - thanh tung cua thuong con manh toan tap~".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (((hieu manh) OR (dieu hanh)))) - thanh tung cua thuong con manh toan tap*.