Perhaps you should try some spelling variations:
thanh truong » thanh thuong, thanh tung, thanh huong
thanh trung » thanh tung
nhung cong » dung cong, thong cong, hang cong
khi xanh » khia canh, thi hanh, thi anh
ca nhung » cua nhung, cam nhung, va nhung
dan nhan » danh nhan, dan chan, ban nhan
van nhan » van phan, van thanh, danh nhan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi khi xanh - ((thanh truong) or (thanh trung)) ca nhung cong ((dan nhan) OR (van nhan)) tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi khi xanh - ((thanh truong) OR (thanh trung)) ca nhung cong ((dan nhan) OR (van nhan)) tai.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi khi xanh - ((thanh truong) or (thanh trung)) ca nhung cong ((dan nhan) OR (van nhan)) tai".
• Adding a wildcard symbol may retrieve word variants: doi khi xanh - ((thanh truong) or (thanh trung)) ca nhung cong ((dan nhan) OR (van nhan)) tai*.