Perhaps you should try some spelling variations:
chau tinh » cuu tinh, ha tinh, cua tinh
phan dinh » phan tich, xuan dinh, tran dinh
tong cong » trong cong, cong cong, dung cong
cong hach » cong sach, cong thanh, cong khanh
hach toan » thanh toan, manh toan
dinh cuu » dinh chi
cuu tong » cuu cong, cuu tinh, huu tung
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 ((chau tinh) or (trieu tinh)) - phan dinh cuu tong cong hach toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chau tinh) OR (trieu tinh)) - phan dinh cuu tong cong hach toan cau*.