Perhaps you should try some spelling variations:
choc chinh » cuoc chinh, cho chinh, chon chinh
hanh trinh » canh tranh, hanh chinh
trinh luan » trinh luat, trinh quan, trinh han
luan hoang » luan hoan, quan hoang, tuan hoang
hoc chinh » hoan chinh, hoc sinh, hoc kinh
cong dan » cong san, cong tan, huong dan
cong tac » cong ty
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc chinh) or (choc chinh)) sach - hanh trinh luan hoang ((cong dan) or (cong tac)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chinh) OR (choc chinh)) sach - hanh trinh luan hoang ((cong dan) OR (cong tac)) toan ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc chinh) or (choc chinh)) sach - hanh trinh luan hoang ((cong dan) or (cong tac)) toan ban*.