Perhaps you should try some spelling variations:
nang lap » nang cap, sang lap, nang lam
su sach » so sach
va danh » va dinh, va dan, va hanh
vu sach » vu bach, vu khach
lap hai » lap tai, lap lai, lap hoat
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
di cua » dai cua, doi cua, de cua
vi cua » vai cua
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va

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