Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach, thuat tach
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
hanh tinh » hanh trinh, thanh tinh, canh tinh
cua trong » cua truong, cua trung, qua trong
so thiet » soc thiet, hoc thiet, hoa thiet
tan ran » tan tran, tan van, tan rao
tan san » tai san, tan van, han san

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

• If you are trying to use Boolean operators, they must be ALL CAPS: so thiet tach - ((hanh tinh) OR (nhanh tinh)) cua trong cong ((tan ran) OR (tan san)) cau~.
• Adding a wildcard symbol may retrieve word variants: so thiet tach - ((hanh tinh) or (nhanh tinh)) cua trong cong ((tan ran) or (tan san)) cau*.