Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
cua tu » cua tuc, cua su, cua te
cua cu » cua chu, cua cau, cua su
x hoi » o hoi, x ho, 5 hoi

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty xang ((x hoi) OR (xa hoi)). hieu va cam xuc va hanh va ((cua tu) OR (cua cu))~.
• Adding a wildcard symbol may retrieve word variants: tu sach ty xang ((x hoi) or (xa hoi)). hieu va cam xuc va hanh va ((cua tu) or (cua cu))*.