Perhaps you should try some spelling variations:
nang lap » nang cap, sang lap, nang lam
su sach » so sach, vu sach
lap hai » lap tai, lap lai, lap hoat
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
loc va » hoc va
vi cua » vai cua, di cua
dan vi » doan vi, don vi, dan va
cua te » cua tu
tuc va » thuc va, truc va, tuc xa
luc va » duc va
ve cam » ve cham, ve cac, va cam

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