Perhaps you should try some spelling variations:
banh tran » banh trang, ban tran, canh tranh
lang song » nang song, lang son, lang dong
bang song » nang song
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
tran van » luan van
dan phan » doan phan, dan chan, van 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: theo chu xanh - banh tran van ((lang song) or (bang song)) dan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - banh tran van ((lang song) OR (bang song)) dan phan dau.
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - banh tran van ((lang song) or (bang song)) dan phan dau*.