Perhaps you should try some spelling variations:
nuoc sach » nguoi sach, hoc sach, cuoc cach
nham thuc » nhan thuc, nam thuc, nham thu
su triet » su viet, su tien, ve triet
hanh dao » lanh dao, thanh dat, thanh dam
hieu va » lieu va, hieu qua
va nham » va cham, va tham, va nha
so sach » so sanh, bo sach, co sach
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
su sach » vu sach
dao su » dao suu, dan su, cao su
x hoi » xa hoi, o hoi, x ho

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: ((((su sach) OR (so sach))) OR (nuoc sach)) ky nang x hoi. hieu va nham thuc va hanh dao su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((su sach) OR (so sach))) or (nuoc sach)) ky nang x hoi. hieu va nham thuc va hanh dao su triet~".
• Adding a wildcard symbol may retrieve word variants: ((((su sach) OR (so sach))) or (nuoc sach)) ky nang x hoi. hieu va nham thuc va hanh dao su triet*.