Perhaps you should try some spelling variations:
dang xay » dang van, van xay
su sach » so sach, vu sach
han tai » hang tai, nhan tai, van tai
ve chat » va chat, van chat
ve cham » va cham, vu cham, ve chim
sach ly » sach y, sach lo, sach ty
lang xa » lang ha, lang van
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 ly ((lang xa) OR (dang xay)) hoi. hieu ((ve cham) or (ve chat)) tuc va han tai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ly ((lang xa) OR (dang xay)) hoi. hieu ((ve cham) OR (ve chat)) tuc va han tai va thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ly ((lang xa) OR (dang xay)) hoi. hieu ((ve cham) or (ve chat)) tuc va han tai va thiet".
• Adding a wildcard symbol may retrieve word variants: su sach ly ((lang xa) OR (dang xay)) hoi. hieu ((ve cham) or (ve chat)) tuc va han tai va thiet*.