Perhaps you should try some spelling variations:
sang lap » sang tao, sang ma, sang tai
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
dinh vi » dinh ve, dinh viet, dinh tri
va dinh » van dinh, va kinh, va tinh
cam luc » cam xuc, cau luc
hieu va » hieu qua
hieu ve » hieu van
lap hai » lap tai, lap lai, lap hoat
ky sang » ky nang, ky dang, ky tang
luc va » duc va, tuc va, loc va
vi cua » vai cua, di cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky sang lap hai. ((hieu ve) or (((hieu va) or (lieu va)))) cam luc va dinh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky sang lap hai. ((hieu ve) OR (((hieu va) OR (lieu va)))) cam luc va dinh vi cua te.
• Adding a wildcard symbol may retrieve word variants: vu sach ky sang lap hai. ((hieu ve) or (((hieu va) or (lieu va)))) cam luc va dinh vi cua te*.