Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trinh quan » tinh quang, trinh han
trinh cua » tinh cua, trinh luan, trinh chat
dung cong » dung trong
tran chau » tranh chap, tran huu
ho chieu » theo chieu, hoc thieu, doi chieu
ty tran » ly tran, tan tran, ty trach

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 ((((trinh cua) OR (trinh quan))) OR (trinh luat)) dung cong ty tran chau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh ((((trinh cua) OR (trinh quan))) or (trinh luat)) dung cong ty tran chau~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((((trinh cua) OR (trinh quan))) or (trinh luat)) dung cong ty tran chau*.