Perhaps you should try some spelling variations:
hanh khoe » hang khoa, anh khoa, hanh hoa
khoe cua » kho cua, khien cua, hoc cua
toc sach » hoc sach, doc sach, thuoc sach
ban hanh » ban hang
luoc ban » luoc can, quoc ban, buoc ban
van cau » van dau, van hau, van chat
van cam » van nam, van lam, van dam
nang o » nang co, nang ho, nang ro
cua te » cua tu
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (toc sach)) ky nang o hoi. hieu ((van cam) OR (van cau)) luoc ban hanh khoe cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ky nang o hoi. hieu ((van cam) OR (van cau)) luoc ban hanh khoe cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (toc sach)) ky nang o hoi. hieu ((van cam) OR (van cau)) luoc ban hanh khoe cua te".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (toc sach)) ky nang o hoi. hieu ((van cam) OR (van cau)) luoc ban hanh khoe cua te*.