Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
thu sach » tu sach, thuat sach, thuoc sach
xuc manh » suc manh, duc manh, duc minh
hanh dai » hanh tai, hanh dao, vanh dai
sach tu » sach thu, cach tu, sach ty
tu nano » truc nano
ve cham » va cham, ve chat, vu cham
cua tre » cua te, cuu tre, cua triet
nano x » nano 1, nano o
ve cai » va cai, ve cac, ve tai
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 tu nano x hoi. hieu ((ve cai) or (ve cham)) xuc manh hanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach tu nano x hoi. hieu ((ve cai) OR (ve cham)) xuc manh hanh dai cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sach tu nano x hoi. hieu ((ve cai) or (ve cham)) xuc manh hanh dai cua tre*.