Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
chieu sang » chieu sach, chieu xanh, hieu lang
nhung cong » dung cong, thong cong, hang cong
canh hanh » xanh hanh, canh tranh, danh thanh
dan than » dan chan, ban than, van than
ban hang » ngan hang
hanh va » hang va, hanh vi

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 sang)) - canh hanh va nhung cong ((dan than) or (ban hang)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu sang)) - canh hanh va nhung cong ((dan than) OR (ban hang)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (chieu sang)) - canh hanh va nhung cong ((dan than) or (ban hang)) cau*.