Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
dung cong » dung trong
thong tu » phong tuc, thong tin, thong ke
cong dan » cong san, cong tan, huong dan
hang ca » hang va, nang cao, hang tai
dan van » dang van, doan van, dao van
van ca » van cau, van cua, dan ca

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 xanh - hanh ((thong tu) or (hang ca)) dung cong dan van ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu xanh - hanh ((thong tu) OR (hang ca)) dung cong dan van ca*.