Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
canh thanh » canh tranh, danh thanh, anh thanh
chieu xanh » chieu sach, chieu sang, chieu tinh
van phuong » van phong, va phuong, van chuong
thien anh » thien danh, tien anh, thien thanh
thanh van » thanh san, thanh toan, thanh phan
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac

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 (thien anh)) - canh thanh van phuong cong dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (thien anh)) - canh thanh van phuong cong dan than cap.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (thien anh)) - canh thanh van phuong cong dan than cap*.