Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, thien danh
dong trong » duong trong, dung trong, cong trong
thien anh » thien danh, tien anh, thien thanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung cua » truong cua, trung tuan, trung cap
trong san » trong cac, cong san, dong san
cua dong » chua dong, cua cong, cua dang
san toan » van toan, dan toan, manh toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((((thieu xanh) or (thien anh))) or (hieu manh)) - thanh trung cua dong trong san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((thieu xanh) OR (thien anh))) OR (hieu manh)) - thanh trung cua dong trong san toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((((thieu xanh) or (thien anh))) or (hieu manh)) - thanh trung cua dong trong san toan cao*.