Perhaps you should try some spelling variations:
ban hanh » ban hang
hanh vai » hanh vi, hanh va, hanh tai
tu sach » thu sach, su sach, te sach
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
cuc ban » cua ban, cac ban, cuu ban
ve cac » va cac, vien cac
ve cam » ve cham, va cam, ve cai
cua su » qua su

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 lang xa hoi. hieu ((ve cam) or (ve cac)) cuc ban hanh vai ((cua tre) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky lang xa hoi. hieu ((ve cam) OR (ve cac)) cuc ban hanh vai ((cua tre) OR (cua su)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky lang xa hoi. hieu ((ve cam) or (ve cac)) cuc ban hanh vai ((cua tre) or (cua su))*.