Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu tinh » trieu tinh, lieu tinh, chau tinh
cong thanh » dong thanh, cong trinh, truong thanh
trung tac » trung tam, trong tac, trung tai
ho chieu » theo chieu, hoc thieu, doi chieu
tac dung » sach dung, xay dung, tin dung
cong tan » cong tac, cong san, cong ty
ran cau » van cau, can cau, tran chau
ban cau » bang cau, ban can, van cau

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 tinh - thanh trung tac dung ((cong tan) or (cong thanh)) ((ran cau) OR (ban cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - thanh trung tac dung ((cong tan) OR (cong thanh)) ((ran cau) OR (ban cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - thanh trung tac dung ((cong tan) or (cong thanh)) ((ran cau) OR (ban cau))".
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - thanh trung tac dung ((cong tan) or (cong thanh)) ((ran cau) OR (ban cau))*.