Perhaps you should try some spelling variations:
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
toan thanh » tran thanh, hoan thanh, toan thang
tran tuan » tran xuan, tran quang, tran thanh
cong toan » cong tan, cong hoan, cong tuan
thanh cau » thanh chau, thanh mau, nhanh cau
dung cua » dung luan, dung cho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu xanh) OR (chieu xanh)) - thanh ((dung cua) or (tran tuan)) nhung cong toan thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu xanh)) - thanh ((dung cua) OR (tran tuan)) nhung cong toan thanh cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (chieu xanh)) - thanh ((dung cua) or (tran tuan)) nhung cong toan thanh cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (chieu xanh)) - thanh ((dung cua) or (tran tuan)) nhung cong toan thanh cau*.