Perhaps you should try some spelling variations:
sach kem » hanh kem
hieu van » hieu va, thien van, lieu va
van chat » cao chat
chat soc » cham soc, chat hoc, chat doc
danh sai » dung sai, danh bat, danh dau
dang xa » dang xay, lang xa, dang ha
va danh » va dinh, va dan, va hanh
sai cua » dai cua, hai cua, lai cua
soc va » hoc va, loc va, doc va

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 kem) or (sach y)) dang xa hoi. hieu van chat soc va danh sai cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach kem) OR (sach y)) dang xa hoi. hieu van chat soc va danh sai cua vat.
• Adding a wildcard symbol may retrieve word variants: tu ((sach kem) or (sach y)) dang xa hoi. hieu van chat soc va danh sai cua vat*.