Perhaps you should try some spelling variations:
so sach » so sanh, bo sach, co sach
danh di » xanh di, danh dien, danh gia
ky sang » ky nang, ky dang, ky tang
lap hai » lap tai, lap hoat, lanh hai
danh du » danh dau, danh tu, dinh du
lap lai » lap tai, lay lai, lam lai
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
cam luc » cam xuc, cau luc
ve cam » ve cham, ve cac, va cam
luc va » duc va, tuc va, loc va
cua tu » cua tuc, cua su, cua cu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky sang ((lap hai) OR (lap lai)). hieu ve cam luc va ((danh di) or (danh du)) cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky sang ((lap hai) OR (lap lai)). hieu ve cam luc va ((danh di) OR (danh du)) cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky sang ((lap hai) OR (lap lai)). hieu ve cam luc va ((danh di) or (danh du)) cua tu*".