Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
khong cang » thong cong, hong bang, thong cung
khong dung » thong dung, phuong dung, cuong dung
tuong cua » truong cua, huong cua, thong cua
thanh lap » thanh san, phan lap, thanh hai
than cap » khan cap, thanh cac, than cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - thanh tuong cua ((khong cang) OR (khong dung)) tan ((than cap) or (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh tuong cua ((khong cang) OR (khong dung)) tan ((than cap) OR (thanh lap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - thanh tuong cua ((khong cang) OR (khong dung)) tan ((than cap) or (thanh lap))".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh tuong cua ((khong cang) OR (khong dung)) tan ((than cap) or (thanh lap))*.