Perhaps you should try some spelling variations:
chiet tach » chieu sach
hanh trang » thanh trung, hanh trinh, minh trang
cua thuong » cua truong, cua phuong, ca thuong
thuong con » thuong dong, truong cong, thong cong
dan toan » van toan, dan than, manh toan
toan ban » van ban
con dan » cong dan, co dan, con ban

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

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