Perhaps you should try some spelling variations:
thanh trung » thanh tung
khong cang » hong bang, khong dung, thong cung
thong cong » trong cong, tong cong, thong thong
thanh than » thanh thanh, thanh thang, thanh toan
trung cua » truong cua, trung tuan, trung cap
than cap » khan cap, thanh lap, thanh cac
ho lieu » co lieu, ho kieu, ho chieu
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: ((ho lieu) or (so lieu)) tinh - thanh trung cua ((khong cang) OR (thong cong)) thanh than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho lieu) OR (so lieu)) tinh - thanh trung cua ((khong cang) OR (thong cong)) thanh than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho lieu) or (so lieu)) tinh - thanh trung cua ((khong cang) OR (thong cong)) thanh than cap".
• Adding a wildcard symbol may retrieve word variants: ((ho lieu) or (so lieu)) tinh - thanh trung cua ((khong cang) OR (thong cong)) thanh than cap*.