Perhaps you should try some spelling variations:
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trung » thanh trung, hanh trang, manh trung
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
vap nhung » va nhung, ve nhung, voi nhung
cong bang » cuong bang, dong bang, hong bang
bang than » bang thanh, ban than, sang than
than cap » khan cap, thanh lap, thanh cac

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