Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
chiet tach » chieu sach
tuong cong » truong cong, trong cong, tong cong
trinh toan » tinh toan, thanh toan, trinh han
trung ba » truong ba, trung ha, trung va
ba tuong » ban tuong, bao tuong, va tuong
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sang) or (chiet tach)) - thanh trung ba tuong cong trinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sang) OR (chiet tach)) - thanh trung ba tuong cong trinh toan cau.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sang) or (chiet tach)) - thanh trung ba tuong cong trinh toan cau*.