Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
hanh trang » thanh trung, hanh trinh, minh trang
cong thong » cong thuong, cong trong, dong thong
thong van » trong van, thong va, thong quan
van thanh » ban thanh, van tuan
thanh tap » thanh lap, thanh tai, thanh tay

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sach) OR (chiet tach)) - ((hanh trang) or (canh tranh)) cua cong thong van thanh tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chiet tach)) - ((hanh trang) OR (canh tranh)) cua cong thong van thanh tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (chiet tach)) - ((hanh trang) or (canh tranh)) cua cong thong van thanh tap".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) OR (chiet tach)) - ((hanh trang) or (canh tranh)) cua cong thong van thanh tap*.