Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
theo chieu » theo tieu, ho chieu, thi chieu
trinh quan » tinh quang, trinh luat, trinh han
quan lang » quan hoang, gian lang, quan luan
lang cong » dang cong, bang cong, hang cong
theo chu » cho chu, chao chu, theo yeu
cong van » cong vang, cong san, song van
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo chu)) xanh - canh trinh quan lang cong van ((toan cau) OR (toan cao))~.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo chu)) xanh - canh trinh quan lang cong van ((toan cau) or (toan cao))*.