Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
chieu sach » chinh sach, chiet tach, chieu sang
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh van » tran van, trinh van, thanh van
van hang » van khang, van hoang, van thang
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
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 ((hieu manh) or (chieu sach)) - hanh tranh van hang ((cong tan) OR (cong san)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sach)) - hanh tranh van hang ((cong tan) OR (cong san)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (chieu sach)) - hanh tranh van hang ((cong tan) OR (cong san)) toan tap".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sach)) - hanh tranh van hang ((cong tan) OR (cong san)) toan tap*.