Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
cua thuong » cua truong, cua phuong, cua huong
ca thuong » cao thuong, va thuong, cp thuong
cong vang » cong lang, cong quang, cong ngang
vang than » sang than, van than, cang thang
hoc danh » hoc dan, hoc anh, hoc hanh
than cap » khan cap, thanh lap, thanh cac
cho hoc » co hoc, khoa hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: cho hoc danh - ((canh tranh) or (hanh trinh)) ((cua thuong) OR (ca thuong)) cong vang than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho hoc danh - ((canh tranh) OR (hanh trinh)) ((cua thuong) OR (ca thuong)) cong vang than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cho hoc danh - ((canh tranh) or (hanh trinh)) ((cua thuong) OR (ca thuong)) cong vang than cap".
• Adding a wildcard symbol may retrieve word variants: cho hoc danh - ((canh tranh) or (hanh trinh)) ((cua thuong) OR (ca thuong)) cong vang than cap*.