Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
trung cua » truong cua, trung tuan, trung cap
tran tuan » tran xuan, tran quang, tran thanh
tong hong » tong thong, thong hong, tong cong
cong toan » cong hoan, cong tuan, cong doan
doc hieu » toc thieu, hoc thieu, hoc hien
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - thanh ((trung cua) or (tran tuan)) tong hong ((cong toan) OR (cong tan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - thanh ((trung cua) OR (tran tuan)) tong hong ((cong toan) OR (cong tan)) cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - thanh ((trung cua) or (tran tuan)) tong hong ((cong toan) OR (cong tan)) cau*".