Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
dang xay » dang van, van xay
hieu van » hieu va, thien van, lieu va
van chat » cao chat
chat soc » cham soc, chat hoc, chat doc
danh dai » danh dau, danh di, danh sai
sach ky » sac ky, sach y, sach ty
lang xa » lang ha, lang van
va danh » va dinh, va dan, va hanh
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: thuoc sach ky ((lang xa) or (dang xay)) hoi. hieu van chat soc va danh dai cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ky ((lang xa) OR (dang xay)) hoi. hieu van chat soc va danh dai cua vat.
• Adding a wildcard symbol may retrieve word variants: thuoc sach ky ((lang xa) or (dang xay)) hoi. hieu van chat soc va danh dai cua vat*.