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
va trong » va truong, va thong, va trung
va tuong » va thuong, va thong, xa truong
cong van » cong vang, cong san, song van
van quan » van ban
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 trong) or (va tuong)) 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 trong) OR (va tuong)) cong van quan ha.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (hien hanh)) - canh trinh ((va trong) or (va tuong)) cong van quan ha*.