Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
canh trinh » canh tranh, hanh trinh, canh tinh
hien hanh » dieu hanh
cong cong » cong dong, trong cong, dung cong
trinh va » trinh van, trinh vat, trinh ve
cong van » cong vang, cong san, song van
van quan » van ban
va cong » tai cong, cua cong
quan ha » quan he

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 (hien hanh)) - canh trinh va cong cong van quan ha~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (hien hanh)) - canh trinh va cong cong van quan ha.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (hien hanh)) - canh trinh va cong cong van quan ha*.