Perhaps you should try some spelling variations:
thanh trung » thanh tung
thanh thanh » nhanh thanh, thanh toan, thanh phan
khong cang » thong cong, hong bang, khong dung
trung cap » truong cao, trung tam
thanh lap » thanh san, phan lap, thanh hai
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 cap ((khong cang) or (thong thong)) thanh thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho lieu) OR (so lieu)) tinh - thanh trung cap ((khong cang) OR (thong thong)) thanh thanh lap.
• Adding a wildcard symbol may retrieve word variants: ((ho lieu) or (so lieu)) tinh - thanh trung cap ((khong cang) or (thong thong)) thanh thanh lap*.