Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
nhieu tang » chieu sang, hieu lang, nhiet nang
trung cap » truong cao, trung tam
bang song » nang song
cap bang » cao bang, can bang, lap bang
tap toan » tap doan, tap quan
bai toan » bai tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) or (nhieu tang)) - thanh trung cap bang song ((tap toan) OR (bai toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (nhieu tang)) - thanh trung cap bang song ((tap toan) OR (bai toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (nhieu tang)) - thanh trung cap bang song ((tap toan) OR (bai toan)) cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (nhieu tang)) - thanh trung cap bang song ((tap toan) OR (bai toan)) cau*.