Perhaps you should try some spelling variations:
sang lap » sang tao, sang ma, sang tai
danh vi » hanh vi, dinh vi, danh di
sach ky » sac ky, sach ty, sach kem
hieu ve » hieu va, hieu van
lap hai » lap tai, lap lai, lap hoat
ve cac » va cac, vien cac
xuc va » tuc va, luc va, xac 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) or (sach y)) sang lap hai. hieu ve cac ((xuc va) or (duc va)) danh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sach y)) sang lap hai. hieu ve cac ((xuc va) OR (duc va)) danh vi cua te.
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) or (sach y)) sang lap hai. hieu ve cac ((xuc va) or (duc va)) danh vi cua te*.