Perhaps you should try some spelling variations:
tong trong » thong trong, trong trong, cong trong
gian chau » gian cham, gian cua, gian cac
nhan dinh » nhan sinh, phan dinh, nhan tinh
trong van » trong cac
gioi cam » gioi can, gioi cau, gioi lam
dinh cuu » dinh chi
cuu tong » cuu cong, cuu tinh, huu tung
van toan » van tuan, van tan, van thanh
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: ((gioi cam) or (gian chau)) tinh - nhan dinh cuu tong trong van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((gioi cam) OR (gian chau)) tinh - nhan dinh cuu tong trong van toan cao*.