Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
chiet tach » chieu sach
hanh tang » hanh trang, anh tang, hanh mang
tang cua » mang cua, hang cua, tang luan
cua dung » cua dang, cua dong, qua dung
cong van » cong vang, song van, cong tan
cong san » cong tac
toan ban » van ban

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 (chiet tach)) - hanh tang cua dung ((cong van) OR (cong san)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chiet tach)) - hanh tang cua dung ((cong van) OR (cong san)) toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (chiet tach)) - hanh tang cua dung ((cong van) OR (cong san)) toan ban*".