Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
chu bang » chuc nang, chu quang, chu trang
thu bang » thu ban, thu hang, thu trang
hanh ly » khanh ly, hanh ky, hang ly
va cham » va chat, va tham
hieu va » lieu va, hieu qua
soc va » hoc va, loc va, goc va
doc va » duoc va, hoc va, duc va
ly cua » le cua
cua te » cua tu

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 ((chu bang) OR (thu bang)) xa hoi. hieu va cham ((soc va) or (doc va)) hanh ly cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ((chu bang) OR (thu bang)) xa hoi. hieu va cham ((soc va) OR (doc va)) hanh ly cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ((chu bang) OR (thu bang)) xa hoi. hieu va cham ((soc va) or (doc va)) hanh ly cua te".
• Adding a wildcard symbol may retrieve word variants: toc sach ((chu bang) OR (thu bang)) xa hoi. hieu va cham ((soc va) or (doc va)) hanh ly cua te*.