Perhaps you should try some spelling variations:
chiet tach » chieu sach
hanh trinh » canh tranh, hanh chinh
dang trong » dung trong, dong trong, lang trong
trinh cua » tinh cua, trinh luat, trinh quan
ho chiet » ho chieu, ho thiet, hoc thiet
cua dang » cua cong, cua ban
dan chan » dan gian, dan ca, van chat

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 cua dang trong ((xuan toan) or (dan chan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - hanh trinh cua dang trong ((xuan toan) OR (dan chan)) cau*.