Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
truong va » truong cao, truong dao, luong va
tong cong » trong cong, cong cong, dung cong
cong doan » cong dan, cong hoan, dong doanh
doan phan » doanh phan, toan phan, dan phan
phan cau » phan dau, phan cac, phan tu
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: so lieu tinh - thanh ((truong va) or (truong dai)) tong cong doan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so lieu tinh - thanh ((truong va) OR (truong dai)) tong cong doan phan cau*.