Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien danh
trinh quan » tinh quang, trinh luat, trinh han
khong cang » thong cong, hong bang, khong dung
thien anh » thien danh, tien anh, thien thanh
trinh cua » tinh cua, trinh luat, trinh luan
cang tan » cong tan, cung tan, tang tan
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap

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: toc ((thieu xanh) OR (thien anh)) - hanh ((trinh cua) OR (trinh quan)) khong cang tan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((thieu xanh) OR (thien anh)) - hanh ((trinh cua) or (trinh quan)) khong cang tan toan cau~".
• Adding a wildcard symbol may retrieve word variants: toc ((thieu xanh) OR (thien anh)) - hanh ((trinh cua) or (trinh quan)) khong cang tan toan cau*.