Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
huong tinh » khuong tinh, thuong tinh, duong tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
tam duong » tam huong, tuan duong, thao duong
tam dung » tac dung, tan dung, am dung
toan ban » van 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 chieu xanh - thanh trung ((tam dung) OR (tam duong)) huong tinh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - thanh trung ((tam dung) OR (tam duong)) huong tinh toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - thanh trung ((tam dung) OR (tam duong)) huong tinh toan ban*.