Perhaps you should try some spelling variations:
so sach » so sanh, bo sach, co sach
ly nang » ky nang, ly hang, ly vang
ca truc » cau truc, ca tru, ba truc
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
y nang » ky nang, v nang, may nang
qua ca » qua cac, qua cua, qua cai
vu van » tu van
x hoi » xa hoi, o hoi, x ho

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 ((y nang) OR (ly nang)) x hoi. hieu qua ca truc va hanh ((vu van) or (tu va)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((y nang) OR (ly nang)) x hoi. hieu qua ca truc va hanh ((vu van) OR (tu va)) triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ((y nang) OR (ly nang)) x hoi. hieu qua ca truc va hanh ((vu van) or (tu va)) triet*".