Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung thuat » trong thuat, thuong thuat, trung tuan
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
thuat hung » thuat dung, thuat ung, thuat xung
hung cong » nhung cong, hung cuong, phung cong
tan toan » tap toan, van toan, dan toan

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) OR (chieu sang)) - thanh trung thuat hung cong ((tan toan) or (tan tran)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sang)) - thanh trung thuat hung cong ((tan toan) OR (tan tran)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) OR (chieu sang)) - thanh trung thuat hung cong ((tan toan) or (tan tran)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) OR (chieu sang)) - thanh trung thuat hung cong ((tan toan) or (tan tran)) cau*.