Perhaps you should try some spelling variations:
sang lap » sang tao, sang ma, sang tai
hang tai » hang va, dung tai
su sach » so sach, vu sach
dinh vi » dinh ve, dinh viet, dinh tri
danh vi » hanh vi, danh di, danh va
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
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 xuc va ((danh vi) OR (dinh 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 xuc va ((danh vi) OR (dinh vi)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky ((sang lap) or (hang tai)) hai. hieu ve cam xuc va ((danh vi) OR (dinh vi)) cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ky ((sang lap) or (hang tai)) hai. hieu ve cam xuc va ((danh vi) OR (dinh vi)) cua te*.