Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, hieu ve
phan luc » nhan luc, phan duc, phan suc
hanh vai » hanh vi, hanh va, hanh tai
tu sach » thu sach, su sach, te sach
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
y nang » ky nang, ly nang, v nang
luc va » duc va, tuc va, loc va
cua te » cua tu
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: tu sach y nang x hoi. ((hieu van) OR (lieu va)) phan luc va hanh vai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang x hoi. ((hieu van) OR (lieu va)) phan luc va hanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang x hoi. ((hieu van) OR (lieu va)) phan luc va hanh vai cua te*.