Perhaps you should try some spelling variations:
nuoc sach » nguoi sach, hoc sach, cuoc cach
toc sach » hoc sach, thuoc sach, toc san
doc sach » hoc sach, dac sac, bo sach
hieu van » hieu va, thien van, lieu va
hanh tai » thanh tai, hang tai, han tai
van cam » van nam, van lam, van cau
va hanh » van hanh, va thanh, va danh
tai cua » thai cua, tai cuc, tri cua
cam tu » cam thu, nam tu, dam tu
cua te » cua tu
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: ((((toc sach) or (nuoc sach))) or (doc sach)) ky nang x hoi. hieu van cam tu va hanh tai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((toc sach) OR (nuoc sach))) OR (doc sach)) ky nang x hoi. hieu van cam tu va hanh tai cua te.
• Adding a wildcard symbol may retrieve word variants: ((((toc sach) or (nuoc sach))) or (doc sach)) ky nang x hoi. hieu van cam tu va hanh tai cua te*.