Perhaps you should try some spelling variations:
chu viet » che viet, khau viet, su viet
cac thuc » cach thuc, cac thu, can thuc
hanh va » hang va
thuc va » thuc vat, thuc dan, thuc day
sach ty » sach y, sach thu, xach tay
hieu ve » hieu va, hieu van
xang xa » lang xa, mang xa, ang xa
sach tu » sach thu, cach tu, sach uu
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ty) OR (sach tu)) xang xa hoi. hieu ve cac thuc va ((hanh va) or (hanh vi)) chu viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sach tu)) xang xa hoi. hieu ve cac thuc va ((hanh va) OR (hanh vi)) chu viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) OR (sach tu)) xang xa hoi. hieu ve cac thuc va ((hanh va) or (hanh vi)) chu viet*".