Perhaps you should try some spelling variations:
nhung dung » phuong dung, ung dung, thong dung
hieu xanh » chieu xanh, hieu nganh, dieu hanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
dung anh » dung danh, duong anh, dong anh
anh quan » anh tuan, ban quan, anh nhan
quan cao » quang cao, quan cau, quan ao
manh va » hanh va, minh va, lanh va
anh va » hanh 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 xanh) or (hieu manh)) - canh ((manh va) OR (anh va)) nhung dung anh quan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (hieu manh)) - canh ((manh va) OR (anh va)) nhung dung anh quan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu xanh) or (hieu manh)) - canh ((manh va) OR (anh va)) nhung dung anh quan cao".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) or (hieu manh)) - canh ((manh va) OR (anh va)) nhung dung anh quan cao*.