Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
thiet yeu » thiet ke
tong cong » trong cong, cong cong, dung cong
cong tinh » cong trinh, cong vinh, long tinh
theo yeu » theo tieu, theo chu
trung va » truong va, trang va, trung ha
toan tap » toan ban
va tong » va thong, va tuong, va trong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (((theo yeu) OR (thiet yeu)))) xanh - thanh trung va tong cong tinh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (((theo yeu) OR (thiet yeu)))) xanh - thanh trung va tong cong tinh toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (((theo yeu) OR (thiet yeu)))) xanh - thanh trung va tong cong tinh toan tap".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (((theo yeu) OR (thiet yeu)))) xanh - thanh trung va tong cong tinh toan tap*.