Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
ho trieu » mot trieu, 25 trieu, 30 trieu
trang va » tran van, hang va
trung ha » trung hoc, trung tam, trung cap
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho trieu tinh - thanh ((trang va) or (trung ha)) nhung cong van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho trieu tinh - thanh ((trang va) OR (trung ha)) nhung cong van toan cao.
• Adding a wildcard symbol may retrieve word variants: ho trieu tinh - thanh ((trang va) or (trung ha)) nhung cong van toan cao*.