Perhaps you should try some spelling variations:
phuong dong » phuong dung, phuong hoang, chuong duong
trung tuan » trung thanh, trung tam, tran tuan
hieu tinh » chieu tinh, lieu tinh, kieu tinh
trung cua » truong cua, trung cap, dung cua
manh toan » thanh toan, anh tuan, tinh toan
ban thanh » ban hanh, ban hang
doc hieu » toc thieu, hoc thieu, hoc hien

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: doc hieu tinh - hanh ((trung cua) OR (trung tuan)) phuong dong ((manh toan) OR (ban thanh)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu tinh - hanh ((trung cua) OR (trung tuan)) phuong dong ((manh toan) or (ban thanh)) cau~".
• Adding a wildcard symbol may retrieve word variants: doc hieu tinh - hanh ((trung cua) OR (trung tuan)) phuong dong ((manh toan) or (ban thanh)) cau*.