Perhaps you should try some spelling variations:
nang lap » nang cap, sang lap, nang lam
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
va danh » va dinh, va dan, va hanh
ve cham » va cham, ve chat, vu cham
lap hai » lap tai, lap lai, lap hoat
ve cam » ve cac, va cam, ve cai
luc va » duc va, tuc va, loc va
vi cua » vai cua, di cua
de cua » le cua, te cua, dieu cua

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 hai. hieu ((ve cam) OR (ve cham)) luc va danh ((vi cua) or (de cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang lap hai. hieu ((ve cam) OR (ve cham)) luc va danh ((vi cua) OR (de cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang lap hai. hieu ((ve cam) OR (ve cham)) luc va danh ((vi cua) or (de cua)) te".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang lap hai. hieu ((ve cam) OR (ve cham)) luc va danh ((vi cua) or (de cua)) te*.