Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hanh tai » thanh tai, hang tai, han tai
hanh dai » hanh dao, vanh dai, thanh dat
cuc ban » cua ban, cac ban, cuu ban
ve cham » va cham, ve chat, vu cham
sach ky » sac ky, sach y, sach ty
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
cua tre » cua te, cuu tre, cua triet
ve cam » ve cac, va cam, ve cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky lang xa hoi. hieu ((ve cam) or (ve cham)) cuc ban ((hanh dai) or (hanh tai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky lang xa hoi. hieu ((ve cam) OR (ve cham)) cuc ban ((hanh dai) OR (hanh tai)) cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ky lang xa hoi. hieu ((ve cam) or (ve cham)) cuc ban ((hanh dai) or (hanh tai)) cua tre*.