Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chieu sach » chinh sach, chiet tach, chieu sang
doanh cua » doanh luan
ho chieu » theo chieu, hoc thieu, doi chieu
manh cua » ban cua
cong tac » cong ty
quan cap » quan cau, quang cao, quan phap
quan lap » quan luan, quang lam, quan lang

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 sach - hanh ((manh cua) OR (doanh cua)) thuong cong tac ((quan cap) OR (quan lap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh ((manh cua) OR (doanh cua)) thuong cong tac ((quan cap) or (quan lap))~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((manh cua) OR (doanh cua)) thuong cong tac ((quan cap) or (quan lap))*.