Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien danh
nhung song » nhung cong, nhung bong, nhung chong
thien anh » thien danh, tien anh, thien thanh
tranh va » tranh van, trang va, trinh va
song van » hoang van, trong van, duong van
phan lap » phan dau
phan cac » nhan cach, phan dau, phan van

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - canh tranh va nhung song van ((phan lap) OR (phan cac))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (thien anh)) - canh tranh va nhung song van ((phan lap) or (phan cac))~".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (thien anh)) - canh tranh va nhung song van ((phan lap) or (phan cac))*.