Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tang luan » dung luan
theo cuu » theo chu, khao cuu, thao cua
tang cua » mang cua, hang cua, thong cua
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than man » than ma, thanh san, tran manh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo cuu van - hanh ((tang cua) OR (tang luan)) nhung cong dan than man~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo cuu van - hanh ((tang cua) OR (tang luan)) nhung cong dan than man".
• Adding a wildcard symbol may retrieve word variants: theo cuu van - hanh ((tang cua) OR (tang luan)) nhung cong dan than man*.