Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
pham thuc » phap thuc, pham chuc, pham thu
nham thuc » nhan thuc, nam thuc, nham thu
cua triet » cua viet, su triet, va triet
sach kem » hanh kem
kem dang » kien dang, le dang, de dang
dang xay » dang van, van xay
hanh vai » hanh vi, hanh va, hanh tai
xay hoi » xa hoi, tay hoi, cay phoi
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, ban hanh
vai cua » dai cua, hai cua, lai cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach kem dang xay hoi. hieu ve ((pham thuc) or (nham thuc)) va hanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach kem dang xay hoi. hieu ve ((pham thuc) OR (nham thuc)) va hanh vai cua triet.
• Adding a wildcard symbol may retrieve word variants: thuat sach kem dang xay hoi. hieu ve ((pham thuc) or (nham thuc)) va hanh vai cua triet*.