Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
sach ty » sach y, sach tu, sach thu
hanh va » hang va, hanh vi
tu sach » thu sach, su sach, te sach
xang xa » lang xa, mang xa, ang xa
ve cam » ve cham, va cam, ve cai
tuc va » thuc va, truc va, duc va
va cua » va chua, via cua, ca cua
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 xang xa hoi. hieu ((ve cam) or (ve cac)) ((tuc va) OR (tuc xa)) hanh va cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty xang xa hoi. hieu ((ve cam) OR (ve cac)) ((tuc va) OR (tuc xa)) hanh va cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty xang xa hoi. hieu ((ve cam) or (ve cac)) ((tuc va) OR (tuc xa)) hanh va cua viet*".