Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
cua nhung » va nhung
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
chan ban » chat ban, chan nan, chan doan
anh ban » anh bang, anh bai, anh van
ban cua » ban quan
can ban » van ban, toan ban

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

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