Perhaps you should try some spelling variations:
chiet tach » chieu sach
hieu nganh » vien nganh, hiem ngan, hieu manh
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong van » cong vang, cong san, song van
van hanh » van thanh, ban hanh, van anh
hanh cau » nhanh cau, hang cau, hanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((((dieu hanh) or (hieu nganh))) or (chiet tach)) - hanh tranh cua nhung cong van hanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((((dieu hanh) OR (hieu nganh))) OR (chiet tach)) - hanh tranh cua nhung cong van hanh cau.
• Adding a wildcard symbol may retrieve word variants: theo ((((dieu hanh) or (hieu nganh))) or (chiet tach)) - hanh tranh cua nhung cong van hanh cau*.