Perhaps you should try some spelling variations:
tinh hai » tinh thai, tinh chat, trinh han
so sach » so sanh, bo sach, co sach
cua tre » cua te, cua triet, dua tren
va tinh » may tinh
cac duc » cac du, cao duc, cac dac
sach tu » sach thu, cach tu, sach ty
hieu ve » hieu va, hieu van
hanh ma » hanh mau, hanh may, hanh va
hanh xa » hanh va, hanh xu, canh xa
cuu tre » cau tren, cau treo
ve cac » va cac, vien cac

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 sach tu ((hanh xa) OR (hanh ma)) hoi. hieu ve cac duc va tinh hai ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach tu ((hanh xa) or (hanh ma)) hoi. hieu ve cac duc va tinh hai ((cua tre) OR (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: so sach tu ((hanh xa) or (hanh ma)) hoi. hieu ve cac duc va tinh hai ((cua tre) OR (cuu tre))*.