Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, theo chu, thi chieu
trung cap » truong cao, trung tam
cong cong » cong dong, trong cong, dung cong
ho chieu » hoc thieu, doi chieu, mot chieu
cap cong » cac cong, cao cong, tap cong
tuan thu » toan thuc, van thu
tuan tu » tran tu, toan tu, than tu

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 (ho chieu)) xanh - thanh trung cap cong cong trinh ((tuan tu) OR (tuan thu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) xanh - thanh trung cap cong cong trinh ((tuan tu) OR (tuan thu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (ho chieu)) xanh - thanh trung cap cong cong trinh ((tuan tu) OR (tuan thu))".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (ho chieu)) xanh - thanh trung cap cong cong trinh ((tuan tu) OR (tuan thu))*.