Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
thieu xanh » chieu xanh, hieu manh, thien danh
trinh cong » trinh dung
thien anh » thien danh, tien anh, thien thanh
trinh qua » trinh quan, trinh cua, trinh quang
qua trinh » qua kinh
cong dan » cong san, cong tan, huong dan
ca cac » cua cac, va 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 ((thieu xanh) or (thien anh)) - canh trinh qua trinh cong dan ca cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - canh trinh qua trinh cong dan ca cac.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (thien anh)) - canh trinh qua trinh cong dan ca cac*.