Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung cua » truong cua, trung tuan, trung cap
dang cong » dung cong
cua dang » cua cong, cua ban
cong tac » cong ty
tac tuan » tac quan, ta tuan, tai tuan
tuan tai » toan tai, quan tai, tan tai
so lieu » so dieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc thieu) or (so lieu)) tinh - thanh trung cua dang cong tac tuan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc thieu) OR (so lieu)) tinh - thanh trung cua dang cong tac tuan tai.
• Adding a wildcard symbol may retrieve word variants: ((toc thieu) or (so lieu)) tinh - thanh trung cua dang cong tac tuan tai*.