Perhaps you should try some spelling variations:
thieu quang » hieu quang, thien quan, trien quang
thieu sang » chieu sang, thieu khang, hieu lang
doanh luan » doanh nhan
duong cong » dung cong, luong cong, duong trong
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan tap » phan lap, han tap, pha tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((thieu sang) OR (thieu quang)) - hanh ((doanh cua) or (doanh luan)) duong cong dan phan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((thieu sang) OR (thieu quang)) - hanh ((doanh cua) OR (doanh luan)) duong cong dan phan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((thieu sang) OR (thieu quang)) - hanh ((doanh cua) or (doanh luan)) duong cong dan phan tap".
• Adding a wildcard symbol may retrieve word variants: toc ((thieu sang) OR (thieu quang)) - hanh ((doanh cua) or (doanh luan)) duong cong dan phan tap*.