Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
van phung » van hung, van chuong, van dung
van phong » van dong, hai phong
ho chieu » theo chieu, hoc thieu, doi chieu
hanh tam » thanh tam, nhanh tam, hanh tram
cong tac » cong ty
tac hanh » tac thanh, tac danh, sac hanh
hanh cao » hanh cac, hanh cat, hanh cad

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: ho chieu xanh - hanh tam ((van phung) OR (van phong)) cong tac hanh cao~.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh tam ((van phung) or (van phong)) cong tac hanh cao*.