Perhaps you should try some spelling variations:
trinh thanh » tinh thanh, trinh han, trinh toan
truong cua » truong ca, truong quan, truong cao
doi chieu » doc hieu, doi chi, mot chieu
trung cua » trung tuan, trung cap, dung cua
thanh cau » thanh chau, thanh mau, nhanh cau
ho chieu » theo chieu, hoc thieu, mot 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 chieu) or (doi chieu)) xanh - thanh ((trung cua) OR (truong cua)) trong cong trinh thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) xanh - thanh ((trung cua) OR (truong cua)) trong cong trinh thanh cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doi chieu)) xanh - thanh ((trung cua) OR (truong cua)) trong cong trinh thanh cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chieu)) xanh - thanh ((trung cua) OR (truong cua)) trong cong trinh thanh cau*.