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
han tai » hang tai, nhan tai, van tai
tuc va » thuc va, truc va, tuc xa
va han » va phan, van han, va hanh
tai va » thai va, mai va, tri va
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 han tai 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 han tai va thiet.
• Adding a wildcard symbol may retrieve word variants: su sach ty xang xa hoi. hieu ((ve cham) or (va tham)) tuc va han tai va thiet*.