Perhaps you should try some spelling variations:
vinh cuu » dinh cuu, sinh cua, dinh cu
so sach » so sanh, bo sach, co sach
nang co » nang cao, nang doc, nang noi
hieu va » lieu va, hieu qua
cam duc » cao duc, pham duc, nam duoc
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
co hoi » co hoc, co loi
vi cuu » vi luu

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 co hoi. hieu va ((cam duc) OR (cam xuc)) va hanh ((vi cuu) or (vinh cuu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y nang co hoi. hieu va ((cam duc) OR (cam xuc)) va hanh ((vi cuu) OR (vinh cuu)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach y nang co hoi. hieu va ((cam duc) OR (cam xuc)) va hanh ((vi cuu) or (vinh cuu)) tre".
• Adding a wildcard symbol may retrieve word variants: so sach y nang co hoi. hieu va ((cam duc) OR (cam xuc)) va hanh ((vi cuu) or (vinh cuu)) tre*.