Perhaps you should try some spelling variations:
sang lap » sang tao, sang ma, sang tai
hang tai » hang va, dung tai
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
su sach » so sach, vu sach
ve cam » ve cham, ve cac, va cam
luc 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: su sach ky ((sang lap) or (hang tai)) hai. hieu ve cam ((luc va) or (duc va)) hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((sang lap) OR (hang tai)) hai. hieu ve cam ((luc va) OR (duc va)) hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: su sach ky ((sang lap) or (hang tai)) hai. hieu ve cam ((luc va) or (duc va)) hanh vi cua te*.