Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
cua tre » cua te, cuu tre, cua triet
banh vi » hanh vi, ban vi, benh vi
duc ban » duc van, dua ban, duc man
hieu va » lieu va, hieu qua
nang ma » tang ma, sang ma, nang cao
ty nang » ky nang, ty xang, ty hang
va lam » van lam, va lap
ma hoi » mai hoi, xa hoi, ma hoa
cua tu » cua tuc, cua su, cua cu

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 nang ma hoi. hieu va lam ((duc ban) OR (duc tan)) banh vi ((cua tre) OR (cua tu))~.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang ma hoi. hieu va lam ((duc ban) or (duc tan)) banh vi ((cua tre) or (cua tu))*.