Perhaps you should try some spelling variations:
trong thanh » truong thanh, trung thanh, rong thanh
thanh khan » thanh phan, thanh nhan, thanh thanh
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
tang cua » hang cua, tang luan, thong cua
mang cua » manh cua, ban cua, cong cua
dung cua » dung luan, dung cho
khan cap » khan ap, than cap, khoan cam

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 - hanh ((((tang cua) or (mang cua))) or (dung cua)) dung trong thanh khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - hanh ((((tang cua) OR (mang cua))) OR (dung cua)) dung trong thanh khan cap.
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - hanh ((((tang cua) or (mang cua))) or (dung cua)) dung trong thanh khan cap*.