Perhaps you should try some spelling variations:
chiet tach » chieu sach
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
quan dong » quang dong, quan long, quan hoang
dong cong » duong cong, dung cong, dang cong
ho chiet » ho chieu, ho thiet, hoc thiet
van toan » van tuan, van tan, van thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chiet tach - hanh trinh quan dong cong ((van toan) or (van ban)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - hanh trinh quan dong cong ((van toan) OR (van ban)) ban.
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - hanh trinh quan dong cong ((van toan) or (van ban)) ban*.