Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, khau sach
can thuc » dan thuc, van thuc, cay thuc
thuc van » thuc vat, thuc dan, thuc va
van hanh » van thanh, ban hanh, van anh
hanh vai » hanh vi, hanh va, hanh tai
va triet » va thiet, va trien, ve triet
tu sach » su sach, te sach, tu cach
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
ve can » ve canh, ve cac, ve ban
vai va » mai va, dai va, hai 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) or (((thu sach) or (thu hoach)))) ky lang xa hoi. hieu ve can thuc van hanh vai va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (((thu sach) OR (thu hoach)))) ky lang xa hoi. hieu ve can thuc van hanh vai va triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (((thu sach) or (thu hoach)))) ky lang xa hoi. hieu ve can thuc van hanh vai va triet*.