Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
cua truong » cua trung, xuan truong, cac truong
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh cua » doanh cua, manh cua
cong van » cong vang, song van, cong tan
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 tinh)) - canh tranh cua truong ((cong van) OR (cong san)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu tinh)) - canh tranh cua truong ((cong van) OR (cong san)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (chieu tinh)) - canh tranh cua truong ((cong van) OR (cong san)) toan tap".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu tinh)) - canh tranh cua truong ((cong van) OR (cong san)) toan tap*.