Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
chu khong » he khong, thi khong, chu trong
thang va » hang va, thong va, thanh va
trang va » tran van, hang va
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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 ((chu khong) or (cay trong)) - thanh ((thang va) OR (trang va)) thong cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chu khong) OR (cay trong)) - thanh ((thang va) OR (trang va)) thong cong dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chu khong) or (cay trong)) - thanh ((thang va) OR (trang va)) thong cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((chu khong) or (cay trong)) - thanh ((thang va) OR (trang va)) thong cong dan toan cao*.