Perhaps you should try some spelling variations:
trinh chuan » trinh han, trinh quan, trinh luan
chieu xanh » chieu sach, chieu sang, chieu tinh
canh trinh » canh tranh, hanh trinh, canh tinh
chuan bang » chua bang, chuan trang, can bang
ho chieu » theo chieu, hoc thieu, doi chieu
song dan » song danh, song van, song da
cong dan » cong san, cong tan, huong dan
toan cao » toan ban, toan tap

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 xanh - canh trinh chuan bang ((song dan) or (cong dan)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - canh trinh chuan bang ((song dan) OR (cong dan)) toan cao.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - canh trinh chuan bang ((song dan) or (cong dan)) toan cao*.