Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
nang noi » nang doc
ban hang » ngan hang
noi hoi » noi doi, doi hoi, hoi hoi
hieu va » lieu va, hieu qua
cao xuc » cam xuc, cao duc, cao suc
xuc ban » duc ban, cuc ban, quoc ban
tai cua » thai cua, tri cua, dai cua
y nang » ky nang, ly nang, v nang
va cao » va cac, va co, va dao

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 y nang noi hoi. hieu va cao xuc ban hang ((tai cua) or (tai cuc)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach y nang noi hoi. hieu va cao xuc ban hang ((tai cua) OR (tai cuc)) te.
• Adding a wildcard symbol may retrieve word variants: toc sach y nang noi hoi. hieu va cao xuc ban hang ((tai cua) or (tai cuc)) te*.