Perhaps you should try some spelling variations:
thanh trung » thanh tung
khong cong » thong cong, khong cang, chong cong
cong thanh » dong thanh, cong trinh, cong tan
trung cap » truong cao, trung tam
cap khong » cat khong, chap phong, va khong
than cap » thanh lap, thanh cac, than cua
khan cap » khan ap, khoan cam, phan cac
ho lieu » so lieu, co lieu, ho chieu
ho kieu » so kieu, thi kieu, ho chieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho lieu) or (ho kieu)) tinh - thanh trung cap khong cong thanh ((than cap) OR (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho lieu) OR (ho kieu)) tinh - thanh trung cap khong cong thanh ((than cap) OR (khan cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho lieu) or (ho kieu)) tinh - thanh trung cap khong cong thanh ((than cap) OR (khan cap))".
• Adding a wildcard symbol may retrieve word variants: ((ho lieu) or (ho kieu)) tinh - thanh trung cap khong cong thanh ((than cap) OR (khan cap))*.