Perhaps you should try some spelling variations:
chieu lang » hieu lang, chi lang, chieu xanh
chieu sang » chieu sach, chieu xanh, hieu lang
canh tran » canh tranh, hanh trang, banh trang
bai tuong » bai trong, dai tuong, tai tuong
ban tuong » ban huong, ban trong, va 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 ((chieu lang) or (chieu sang)) - canh tran ((bai tuong) OR (ban tuong)) tong tap toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu lang) OR (chieu sang)) - canh tran ((bai tuong) OR (ban tuong)) tong tap toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu lang) or (chieu sang)) - canh tran ((bai tuong) OR (ban tuong)) tong tap toan tap".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu lang) or (chieu sang)) - canh tran ((bai tuong) OR (ban tuong)) tong tap toan tap*.