Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
luan phong » luan phuong, xuan phuong, van phong
tran thong » toan thong, tran hong, tran trong
thanh tra » thanh toan, thanh hoa
thong van » trong van, thong va, thong quan
van dan » van ban, ban dan, van 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 thieu sach - thanh tra ((luan phong) or (tran thong)) thong van dan ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu sach - thanh tra ((luan phong) OR (tran thong)) thong van dan ca.
• Adding a wildcard symbol may retrieve word variants: toc thieu sach - thanh tra ((luan phong) or (tran thong)) thong van dan ca*.