Perhaps you should try some spelling variations:
nhung dung » phuong dung, ung dung, thong dung
hieu manh » chieu xanh, hieu nganh, hien hanh
canh manh » lanh manh, canh tranh, cach mang
cua nhung » va nhung
quang cao » quang nam
manh cua » doanh cua, ban cua
dung anh » dung danh, duong anh, dong anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((dieu hanh) or (hieu manh)) - canh manh cua nhung dung anh ((quang cao) or (nang cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((dieu hanh) OR (hieu manh)) - canh manh cua nhung dung anh ((quang cao) OR (nang cao)).
• Adding a wildcard symbol may retrieve word variants: doc ((dieu hanh) or (hieu manh)) - canh manh cua nhung dung anh ((quang cao) or (nang cao))*.