Perhaps you should try some spelling variations:
banh trang » hanh trang, ban trang, banh rang
nhung cong » dung cong, thong cong, hang cong
hoc thieu » hoc hien
canh tran » canh tranh, hanh trang, lanh tranh
van nhung » van nhuong, va nhung, van hung
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) or (toc thieu)) xanh - ((canh tran) OR (banh trang)) van nhung cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) xanh - ((canh tran) OR (banh trang)) van nhung cong dan van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (toc thieu)) xanh - ((canh tran) OR (banh trang)) van nhung cong dan van ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) xanh - ((canh tran) OR (banh trang)) van nhung cong dan van ban*.