Perhaps you should try some spelling variations:
chiet tach » chieu sach
hanh tranh » hanh trinh, hanh trang, lanh tranh
nhung cong » dung cong, thong cong, hang cong
ho chiet » ho chieu, ho thiet, hoc thiet
cong dan » cong san, cong tan, huong dan
than cap » khan cap, thanh lap, thanh cac
hanh cac » hang cac, hanh cat, nhanh cay

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 tranh) or (canh tranh)) va nhung cong dan ((than cap) or (hanh cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - ((hanh tranh) OR (canh tranh)) va nhung cong dan ((than cap) OR (hanh cac)).
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - ((hanh tranh) or (canh tranh)) va nhung cong dan ((than cap) or (hanh cac))*.