Perhaps you should try some spelling variations:
chiet tach » chieu sach
hanh trinh » canh tranh, hanh chinh
cua thuong » cua truong, cua phuong, ca thuong
trinh cua » tinh cua, trinh luat, trinh quan
cong thai » hong thai, cong thanh, cong tac
ho chiet » ho chieu, ho thiet, hoc thiet
cong hai » cong ha, hoang hai, cong tac
toan cao » toan ban
toan tap » toan ban

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 thuong ((cong hai) or (cong thai)) ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - hanh trinh cua thuong ((cong hai) OR (cong thai)) ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - hanh trinh cua thuong ((cong hai) or (cong thai)) ((toan cao) or (toan tap))*.