Perhaps you should try some spelling variations:
trinh vat » trinh van, trinh luat, sinh vat
su sach » so sach, vu sach
tinh va » tich va, trinh van, tinh gia
chua te » cua te, chua tu, chua xe
sach ky » sac ky, sach y, sach ty
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
tuc va » thuc va, truc va, tuc xa
va coc » va cuoc, va cac, va co
va hoc » van hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky lang xa hoi. hieu ((va coc) or (va hoc)) tuc va ((tinh va) OR (trinh vat)) chua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky lang xa hoi. hieu ((va coc) OR (va hoc)) tuc va ((tinh va) OR (trinh vat)) chua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky lang xa hoi. hieu ((va coc) or (va hoc)) tuc va ((tinh va) OR (trinh vat)) chua te".
• Adding a wildcard symbol may retrieve word variants: su sach ky lang xa hoi. hieu ((va coc) or (va hoc)) tuc va ((tinh va) OR (trinh vat)) chua te*.