Perhaps you should try some spelling variations:
phuong dung » thong dung, phuong hoang
chieu xanh » chieu sach, chieu sang, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
canh trinh » canh tranh, hanh trinh, canh tinh
trinh luan » trinh luat, trinh quan, trinh han
cuong dung » tuong duong, ung dung, thong dung
tran chau » tranh chap, tran huu
tai tran » thai tran, tan tran, thi tran

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 tinh)) - canh trinh luan ((phuong dung) or (cuong dung)) tai tran chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu tinh)) - canh trinh luan ((phuong dung) OR (cuong dung)) tai tran chau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) OR (chieu tinh)) - canh trinh luan ((phuong dung) or (cuong dung)) tai tran chau".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) OR (chieu tinh)) - canh trinh luan ((phuong dung) or (cuong dung)) tai tran chau*.