Perhaps you should try some spelling variations:
sang lap » sang tao, sang tai, dan lap
su sach » so sach, vu sach
danh di » danh du, xanh di, danh dien
danh vi » hanh vi, dinh vi, danh va
cam duc » cam xuc, cao duc, pham duc
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
sang ma » tang ma, nang ma, sang tao
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.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky ((sang lap) OR (sang ma)) hai. hieu ve cam duc va ((danh vi) or (danh di)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((sang lap) OR (sang ma)) hai. hieu ve cam duc va ((danh vi) OR (danh di)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky ((sang lap) OR (sang ma)) hai. hieu ve cam duc va ((danh vi) or (danh di)) cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ky ((sang lap) OR (sang ma)) hai. hieu ve cam duc va ((danh vi) or (danh di)) cua te*.