Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
cong tinh » cong trinh, cong vinh, long tinh
ho chieu » theo chieu, hoc thieu, doi chieu
va tuong » va thuong, va thong, xa truong
toan cau » toan cao, toan ban, toan tap
va tong » va thong, va trong, va cong

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 sach - thanh trung ((va tong) or (va tuong)) cong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh trung ((va tong) OR (va tuong)) cong tinh toan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh trung ((va tong) or (va tuong)) cong tinh toan cau*.