Perhaps you should try some spelling variations:
cong thuong » hang thuong
chieu sach » chinh sach, chieu sang, chieu xanh
cong thong » cong trong, dong thong, thong thong
canh manh » lanh manh, canh tranh, cach mang
manh cua » doanh cua, ban cua
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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)) - canh manh cua ((cong thong) OR (cong thuong)) dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chiet tach)) - canh manh cua ((cong thong) OR (cong thuong)) dan than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (chiet tach)) - canh manh cua ((cong thong) OR (cong thuong)) dan than cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chiet tach)) - canh manh cua ((cong thong) OR (cong thuong)) dan than cau*.