Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
hanh han » hanh nhan, hanh phan, hanh san
cong ban » cong bang, cong tan, dong ban
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan tap » toan ban
han va » hang va, hanh va, nhan 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 - hanh han va thuong ((((cong ban) OR (cong dan))) or (cong san)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh han va thuong ((((cong ban) OR (cong dan))) OR (cong san)) toan tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh han va thuong ((((cong ban) OR (cong dan))) or (cong san)) toan tap*".