Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
thiet tach » chiet tach, thuat tach
thien hach » thien thanh, hien hanh
truong cao » truong dai
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan ban » van ban
cao han » cao nhan, cao phan, cao van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thiet tach) or (thien hach)) - thanh truong cao han ((cong dan) OR (cong san)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thiet tach) OR (thien hach)) - thanh truong cao han ((cong dan) OR (cong san)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thiet tach) or (thien hach)) - thanh truong cao han ((cong dan) OR (cong san)) toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((thiet tach) or (thien hach)) - thanh truong cao han ((cong dan) OR (cong san)) toan ban*.