Perhaps you should try some spelling variations:
nhung dung » phuong dung, ung dung, thong dung
hieu nganh » vien nganh, hiem ngan, nghiep nganh
hieu manh » chieu xanh, hien hanh, hieu van
canh manh » lanh manh, canh tranh, cach mang
anh quang » anh xquang, anh quan, nhanh quang
quang cao » nang cao, quang nam
dung anh » dung danh, duong anh, dong anh
manh va » hanh va, anh va, minh va

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 nganh) or (((hieu manh) OR (dieu hanh)))) - canh manh va nhung dung anh quang cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu nganh) OR (((hieu manh) OR (dieu hanh)))) - canh manh va nhung dung anh quang cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu nganh) or (((hieu manh) OR (dieu hanh)))) - canh manh va nhung dung anh quang cao".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu nganh) or (((hieu manh) OR (dieu hanh)))) - canh manh va nhung dung anh quang cao*.