Perhaps you should try some spelling variations:
thanh trung » thanh tung
thuong dong » phuong dong, tuong dong, chuong dong
theo chieu » theo tieu, theo chu, thi chieu
cua thuong » cua truong, cua phuong, ca thuong
thuc thanh » thuoc thanh, thuc hanh, phuc thanh
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
dong thuc » dong thuoc, duong thuc, cong thuc
thanh cau » thanh chau, thanh mau, nhanh cau
ho chieu » doi chieu, mot chieu, thi chieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((ho chieu) or (theo chieu))) or (hoc thieu)) tinh - thanh trung cua thuong dong thuc thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((ho chieu) OR (theo chieu))) OR (hoc thieu)) tinh - thanh trung cua thuong dong thuc thanh cau.
• Adding a wildcard symbol may retrieve word variants: ((((ho chieu) or (theo chieu))) or (hoc thieu)) tinh - thanh trung cua thuong dong thuc thanh cau*.