Perhaps you should try some spelling variations:
thanh trung » thanh tung
tieu xanh » tieu danh, chieu xanh, dieu hanh
trung cao » truong cao, trung cap, trung co
hang cong » dang cong, hang nong, bang cong
thanh chu » thanh chau, thanh cha, thanh thu
cao hang » cao dang, cao tang, cao bang
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - thanh trung cao hang cong dan ((((than cau) or (thanh chu))) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - thanh trung cao hang cong dan ((((than cau) OR (thanh chu))) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - thanh trung cao hang cong dan ((((than cau) or (thanh chu))) or (than cap))*.