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
danh lai » danh sai, gianh lai, dinh lam
su triet » su viet, su tien, ve triet
so sach » so sanh, bo sach, co sach
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
ca viet » va viet, co viet, hoa viet
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach tai lang xa hoi. hieu ve cam thuc va danh lai ((su triet) or (((ca viet) or (cua vat))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach tai lang xa hoi. hieu ve cam thuc va danh lai ((su triet) OR (((ca viet) OR (cua vat)))).
• Adding a wildcard symbol may retrieve word variants: so sach tai lang xa hoi. hieu ve cam thuc va danh lai ((su triet) or (((ca viet) or (cua vat))))*.