Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
ban hanh » ban hang
tu sach » thu sach, su sach, te sach
lam xuc » cam xuc, lam duoc
cua tre » cua te, cuu tre, cua triet
xuc ban » duc ban, cuc ban, quoc ban
cu tren » tu tren, dua tren
hieu va » lieu va, hieu qua
y nang » ky nang, ly nang, v nang
va lam » van lam, va lap
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (thuat sach)) y nang x hoi. hieu va lam xuc ban hanh vi ((cua tre) or (cu tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thuat sach)) y nang x hoi. hieu va lam xuc ban hanh vi ((cua tre) OR (cu tren)).
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thuat sach)) y nang x hoi. hieu va lam xuc ban hanh vi ((cua tre) or (cu tren))*.