Perhaps you should try some spelling variations:
thieu quang » thien quan, trien quang, hieu quan
hieu quang » hieu quan, hieu qua, diep quang
doanh cua » doanh luan
tang cua » mang cua, hang cua, tang luan
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac

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: toc ((thieu quang) OR (hieu quang)) - hanh ((doanh cua) OR (tang cua)) trong cong dan than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((thieu quang) OR (hieu quang)) - hanh ((doanh cua) or (tang cua)) trong cong dan than cap~".
• Adding a wildcard symbol may retrieve word variants: toc ((thieu quang) OR (hieu quang)) - hanh ((doanh cua) or (tang cua)) trong cong dan than cap*.