Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
tuong cua » truong cua, huong cua, thong cua
dung cong » dung trong
tung cua » trung cua, dung cua, tang cua
tac phan » tac pham, tai phan, cac phan
tac phat » tac pham, tam phat, tan phat

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: theo chieu xanh - thanh ((tung cua) OR (tuong cua)) dung cong ((tac phan) OR (tac phat)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - thanh ((tung cua) or (tuong cua)) dung cong ((tac phan) OR (tac phat)) cau~".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - thanh ((tung cua) or (tuong cua)) dung cong ((tac phan) OR (tac phat)) cau*.