Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
hanh hinh » hanh chinh, hanh tinh, hanh dinh
dung cong » dung trong
van thanh » ban thanh, van tuan
hinh cua » chinh cua, sinh cua, tinh cua
cua dung » cua dang, cua dong, qua dung
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than

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