Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van nang » van quang, van ban, van dong
nang duc » nang luc, nang doc, nang du
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
y nang » ky nang, ly nang, v nang
vi cua » di cua

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 xa hoi. hieu van nang duc va hanh ((vi cua) OR (vai cua)) triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. hieu van nang duc va hanh ((vi cua) OR (vai cua)) triet".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu van nang duc va hanh ((vi cua) OR (vai cua)) triet*.