Perhaps you should try some spelling variations:
danh thanh » dang thanh, nhanh thanh, ban thanh
song trong » cong trong, dong trong, sang trong
trong hoan » trong hoat, trong doanh, thong hoang
hieu xanh » chieu xanh, hieu nganh, dieu hanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
hoan phan » hoa phan, toan phan, doan phan
phan dau » phan tu, hang dau

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)) - ((danh thanh) OR (dinh thanh)) qua song trong hoan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (hieu manh)) - ((danh thanh) OR (dinh thanh)) qua song trong hoan phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu xanh) or (hieu manh)) - ((danh thanh) OR (dinh thanh)) qua song trong hoan phan dau".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) or (hieu manh)) - ((danh thanh) OR (dinh thanh)) qua song trong hoan phan dau*.