Perhaps you should try some spelling variations:
sach tai » sach bai, sach tham, sach dao
tai lang » tai cong, thi lan, tai san
cam thuc » am thuc, nam thuc, cam thu
vat hanh » vat thanh, van hanh, va hanh
hanh lai » hanh lam, hanh tai, thanh lap
su triet » su viet, ve triet
cua viet » ca viet, hoa viet, cua vat
so sach » so sanh, bo sach, co sach
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
su tien » su kien, su hien, tu tieng
ve cam » ve cham, ve cac, va cam

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

• If you are trying to use Boolean operators, they must be ALL CAPS: so sach tai lang xa hoi. hieu ve cam thuc vat hanh lai ((((su triet) OR (su tien))) OR (cua viet))~.
• Adding a wildcard symbol may retrieve word variants: so sach tai lang xa hoi. hieu ve cam thuc vat hanh lai ((((su triet) or (su tien))) or (cua viet))*.