Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, nhieu tang
hai thuong » hoai thuong, khai thuong, han thuong
hieu lang » hieu quang, nhieu tang, hieu van
canh tran » canh tranh, hanh trang, banh trang
hai tuong » phai tuong, hai duong, dai tuong
tong tap » tuong tac, trong tan, cong tac
tap toan » tap doan, tap quan, bai toan
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: ho ((hieu lang) or (chieu sang)) - canh tran ((hai tuong) or (hai thuong)) tong tap toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chieu sang)) - canh tran ((hai tuong) OR (hai thuong)) tong tap toan tap.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chieu sang)) - canh tran ((hai tuong) or (hai thuong)) tong tap toan tap*.