Perhaps you should try some spelling variations:
nhung duong » nhung dung, nhung huong, nhung tuong
hieu xanh » chieu xanh, hieu manh, hieu nganh
canh manh » lanh manh, canh tranh, cach mang
cua nhung » va nhung
manh cua » doanh cua, ban cua
anh nang » ganh nang, anh bang, anh sang
anh dang » anh dong, anh dung, anh bang

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu xanh) or (dieu hanh)) - canh manh cua nhung duong ((anh nang) OR (anh dang)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (dieu hanh)) - canh manh cua nhung duong ((anh nang) OR (anh dang)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu xanh) or (dieu hanh)) - canh manh cua nhung duong ((anh nang) OR (anh dang)) cao".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) or (dieu hanh)) - canh manh cua nhung duong ((anh nang) OR (anh dang)) cao*.