Perhaps you should try some spelling variations:
chinh doanh » kinh doanh
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
doanh cua » doanh luan
cua trong » cua truong, cua trung, qua trong
cong vang » cong lang, cong quang, cong ngang
tuan thu » toan thuc, van thu
tuan cu » tuan tu, quan cua, than cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu lang) or (chieu sang)) - chinh doanh cua trong cong vang ((tuan cu) OR (tuan thu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chieu sang)) - chinh doanh cua trong cong vang ((tuan cu) OR (tuan thu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) or (chieu sang)) - chinh doanh cua trong cong vang ((tuan cu) OR (tuan thu))".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chieu sang)) - chinh doanh cua trong cong vang ((tuan cu) OR (tuan thu))*.