Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tac » trung tam, trong tac, trung tai
trong van » trong cac
chi xanh » chi anh, chi danh, chi hanh
tac dung » sach dung, xay dung, tin dung
van toan » van tuan, van tan, van thanh
toan ban » van ban
doi chi » doi khi

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 tac dung trong van toan ban~.
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - thanh trung tac dung trong van toan ban*.