Perhaps you should try some spelling variations:
nang mai » nang ma, nang tai, lang mai
mai khoi » mai khoa, tai khoa, cac khoi
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
va dang » van dang, va nang, va lang
xuc va » duc va, tuc va, luc va
ve cam » ve cham, va cam, ve cai
de cua » te cua, dieu cua
le cua » ly cua
ve cac » va cac, vien cac

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

• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky nang mai khoi. hieu ((ve cam) OR (ve cac)) xuc va dang ((de cua) OR (le cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky nang mai khoi. hieu ((ve cam) or (ve cac)) xuc va dang ((de cua) OR (le cua)) tre~".
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang mai khoi. hieu ((ve cam) or (ve cac)) xuc va dang ((de cua) OR (le cua)) tre*.