Perhaps you should try some spelling variations:
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
ve cham » va cham, ve chat, vu cham
va tham » van tham, va cham, va thanh
ban mai » ban moi, ban ma, ban gai
tuc va » thuc va, truc va, tuc xa
va ban » van ban, va bai, va bao
thiet » thieu

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 ty xang xa hoi. hieu ((ve cham) or (va tham)) tuc va ban mai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty xang xa hoi. hieu ((ve cham) OR (va tham)) tuc va ban mai va thiet.
• Adding a wildcard symbol may retrieve word variants: su sach ty xang xa hoi. hieu ((ve cham) or (va tham)) tuc va ban mai va thiet*.