Perhaps you should try some spelling variations:
lap hoat » tap hoa, dan hoat, lap dat
so sach » so sanh, bo sach, co sach
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
cam luc » cam xuc, cau luc
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
lap hai » lap tai, lap lai, lanh hai
ky sang » ky nang, ky dang, ky tang
ve cam » ve cham, ve cac, va cam
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: so sach ky sang ((lap hai) OR (lap hoat)). hieu ve cam luc ((va danh) or (va hanh)) vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky sang ((lap hai) OR (lap hoat)). hieu ve cam luc ((va danh) OR (va hanh)) vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky sang ((lap hai) OR (lap hoat)). hieu ve cam luc ((va danh) or (va hanh)) vi cua te".
• Adding a wildcard symbol may retrieve word variants: so sach ky sang ((lap hai) OR (lap hoat)). hieu ve cam luc ((va danh) or (va hanh)) vi cua te*.