Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
truong va » truong dai, truong cao, truong dao
trung va » trang va, trung ha, trung tam
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap
bi tinh » vi tinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((bi tinh) or (diep tinh)) - thanh ((trung va) OR (truong va)) nhung cong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((bi tinh) OR (diep tinh)) - thanh ((trung va) OR (truong va)) nhung cong dan than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((bi tinh) or (diep tinh)) - thanh ((trung va) OR (truong va)) nhung cong dan than cao".
• Adding a wildcard symbol may retrieve word variants: ho ((bi tinh) or (diep tinh)) - thanh ((trung va) OR (truong va)) nhung cong dan than cao*.