Perhaps you should try some spelling variations:
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
danh nhan » doanh nhan, thanh nhan, benh nhan
anh nhan » doanh nhan, thanh nhan, benh nhan
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than va » thanh va, nhan va, toan va

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 xanh) OR (chieu xanh)) - ((danh nhan) or (anh nhan)) va nhung cong dan than va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu xanh)) - ((danh nhan) OR (anh nhan)) va nhung cong dan than va.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (chieu xanh)) - ((danh nhan) or (anh nhan)) va nhung cong dan than va".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (chieu xanh)) - ((danh nhan) or (anh nhan)) va nhung cong dan than va*.