Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
ban tuong » ban huong, ban trong, ban tieng
trinh han » trinh quan
ba tuong » bao tuong, sa tuong, bang tuong
va tuong » va thuong, va thong, xa truong
han cau » hang cau, phan cau, 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: doi chieu sach - thanh trung ((((ba tuong) OR (va tuong))) or (ban tuong)) cong trinh han cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh trung ((((ba tuong) OR (va tuong))) OR (ban tuong)) cong trinh han cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - thanh trung ((((ba tuong) OR (va tuong))) or (ban tuong)) cong trinh han cau".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh trung ((((ba tuong) OR (va tuong))) or (ban tuong)) cong trinh han cau*.