Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu sang » chieu sang, thieu khang, thieu quang
hoc thieu » toc thieu, hoc hien
tam tong » tai tong, tam nong, tam thuong
tam song » tam nong, lam song, ta song
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.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sang - thanh trung ((tam tong) OR (tam song)) cong dan than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sang - thanh trung ((tam tong) OR (tam song)) cong dan than cap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - thanh trung ((tam tong) OR (tam song)) cong dan than cap*.