Perhaps you should try some spelling variations:
thanh trung » thanh tung
chi xanh » chi anh, chi danh, chi hanh
tam dung » tam duong, tan dung, am dung
tac dung » sach dung, xay dung, tin dung
cong san » cong tac
doi chi » doi khi
san tan » van tan, san van, san tay
tan tai » toan tai, tang tai, tuan tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - thanh trung ((tam dung) or (tac dung)) cong san tan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - thanh trung ((tam dung) OR (tac dung)) cong san tan tai*.