Perhaps you should try some spelling variations:
thanh trung » thanh tung
trinh thanh » tinh thanh, trinh han, trinh toan
doi chieu » doc hieu, doi chi, mot chieu
trung qua » trung quan, trong qua, trung cua
qua trong » quan trong, qua trinh, qua song
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 qua 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 qua trong cong trinh thanh cau.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chieu)) xanh - thanh trung qua trong cong trinh thanh cau*.