Perhaps you should try some spelling variations:
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
han tai » hang tai, nhan tai, van tai
han mai » ban mai, han mac, tan mai
va cham » va chat, va tham
ve cham » ve chat, vu cham, ve chim
xang xa » lang xa, mang xa, ang xa
xuc va » duc va, tuc va, luc 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 cham)) xuc va ((han mai) OR (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 cham)) xuc va ((han mai) OR (han tai)) va thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty xang xa hoi. hieu ((ve cham) or (va cham)) xuc va ((han mai) OR (han tai)) va thiet".
• Adding a wildcard symbol may retrieve word variants: su sach ty xang xa hoi. hieu ((ve cham) or (va cham)) xuc va ((han mai) OR (han tai)) va thiet*.