Perhaps you should try some spelling variations:
thanh trung » thanh tung
duong trong » dung trong
thieu xanh » chieu xanh, thien anh, thien danh
trong xuan » truong xuan, trong quan, thong xuan
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung cua » truong cua, trung tuan, trung cap
cua duong » cua dong, cua huong, qua duong
toan tap » toan ban

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 (hieu manh)) - thanh trung cua duong trong xuan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu manh)) - thanh trung cua duong trong xuan toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (hieu manh)) - thanh trung cua duong trong xuan toan tap*.