Perhaps you should try some spelling variations:
nang lap » sang lap, nang lam, nang phap
nang cap » nang cham, nang phap, hang ca
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky ((nang lap) or (((nang cap) OR (nang cao)))) hoat. hieu va cam xuc va danh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((nang lap) OR (((nang cap) OR (nang cao)))) hoat. hieu va cam xuc va danh vi cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky ((nang lap) or (((nang cap) OR (nang cao)))) hoat. hieu va cam xuc va danh vi cua tu".
• Adding a wildcard symbol may retrieve word variants: su sach ky ((nang lap) or (((nang cap) OR (nang cao)))) hoat. hieu va cam xuc va danh vi cua tu*.