Perhaps you should try some spelling variations:
sang lap » sang tao, sang tai, dan lap
so sach » so sanh, bo sach, co sach
sang ma » tang ma, nang ma, sang tao
hieu ve » hieu va, hieu van
vi cua » vai cua, di cua
tuc va » thuc va, truc va, tuc xa
luc va » duc va, loc va
ve cam » ve cham, ve cac, va cam
cua te » cua tu

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: so sach y ((sang lap) OR (sang ma)) hai. hieu ve cam ((luc va) OR (tuc va)) hanh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach y ((sang lap) or (sang ma)) hai. hieu ve cam ((luc va) OR (tuc va)) hanh vi cua te~".
• Adding a wildcard symbol may retrieve word variants: so sach y ((sang lap) or (sang ma)) hai. hieu ve cam ((luc va) OR (tuc va)) hanh vi cua te*.