Perhaps you should try some spelling variations:
thanh trung » thanh tung
cong thanh » dong thanh, cong trinh, cong tan
tong cong » trong cong, cong cong, dung cong
thanh lap » thanh san, phan lap, thanh hai
ho chieu » theo chieu, hoc thieu, doi chieu
tam tong » tai tong, tam nong, tam song
khan cap » khan ap, than cap, khoan cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (toc thieu)) xanh - thanh trung tam tong cong thanh ((khan cap) or (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (toc thieu)) xanh - thanh trung tam tong cong thanh ((khan cap) OR (thanh lap)).
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (toc thieu)) xanh - thanh trung tam tong cong thanh ((khan cap) or (thanh lap))*.