Perhaps you should try some spelling variations:
tranh quang » tran quang, trinh quang, tinh quang
trong thanh » truong thanh, trung thanh, rong thanh
theo chieu » theo tieu, theo chu, thi chieu
thanh phan » thanh pho, thanh san, thanh toan
thanh qua » thanh quan, thanh qui, hanh qua
ho chieu » hoc thieu, doi chieu, mot chieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (theo chieu)) xanh - canh ((tranh quang) or (thanh qua)) dung trong thanh phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) xanh - canh ((tranh quang) OR (thanh qua)) dung trong thanh phan tu.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chieu)) xanh - canh ((tranh quang) or (thanh qua)) dung trong thanh phan tu*.