Perhaps you should try some spelling variations:
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
sach ky » sac ky, sach ty, sach kem
lang xa » lang ha, dang xay, lang van
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 ky) OR (sach y)) lang xa hoi. hieu van chat soc va danh sai cua vat~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sach y)) lang xa hoi. hieu van chat soc va danh sai cua vat".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sach y)) lang xa hoi. hieu van chat soc va danh sai cua vat*.