Perhaps you should try some spelling variations:
thanh trung » thanh tung
lieu tinh » trieu tinh, diep tinh, bien tinh
dung cong » dung trong
trung ap » trung cap, trung lap, trung tam
cong tac » cong ty
tang ban » tang bang, tiang ban, tang van
ho lieu » so lieu, co lieu, ho kieu
ap dung » xay dung, van dung
tan ban » toan ban, van ban, can ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - thanh trung ap dung cong tac ((tan ban) OR (tang ban))~.
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - thanh trung ap dung cong tac ((tan ban) or (tang ban))*.