Perhaps you should try some spelling variations:
chua triet » cua triet, chua thiet, chua trieu
quoc ban » quoc bao, quoc lan, quoc quan
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
xuc ban » duc ban, cuc ban, xuat ban
hanh va » hang va, hanh vi
va chua » vua chua, ca chua, va chu
ve cac » va cac, vien cac
x hoi » xa hoi, o hoi, 5 hoi

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 ky nang ((x hoi) or (x ho)). hieu ve cac ((xuc ban) or (quoc ban)) hanh va chua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ((x hoi) OR (x ho)). hieu ve cac ((xuc ban) OR (quoc ban)) hanh va chua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ((x hoi) or (x ho)). hieu ve cac ((xuc ban) or (quoc ban)) hanh va chua triet*.