Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
hang cong » hang nong, bang cong, thanh cong
dang cong » dung cong
doan phan » doanh phan, toan phan, dan phan
trang va » tran van
phan cau » phan dau, phan cac, phan tu
ho lieu » so lieu, co lieu, ho kieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho lieu tinh - thanh ((trang va) or (hang va)) ((hang cong) OR (dang cong)) doan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - thanh ((trang va) OR (hang va)) ((hang cong) OR (dang cong)) doan phan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho lieu tinh - thanh ((trang va) or (hang va)) ((hang cong) OR (dang cong)) doan phan cau*".