Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
thu sach » tu sach, thuat sach, thuoc sach
hanh tai » thanh tai, hang tai, han tai
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao
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: thu sach v nang x hoi. hieu ((ve cam) or (va cam)) suc manh hanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach v nang x hoi. hieu ((ve cam) OR (va cam)) suc manh hanh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sach v nang x hoi. hieu ((ve cam) or (va cam)) suc manh hanh tai cua tre*.