Perhaps you should try some spelling variations:
tang luan » dung luan
hang cong » dang cong, hang nong, bang cong
chu xanh » chu manh, chieu xanh, chua xang
tang cua » mang cua, hang cua, thong cua
cong dan » cong san, cong tan, huong dan
cho chu » cho thue
dan van » dang van, doan van, dao van

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

• Performing a fuzzy search may retrieve terms with similar spellings: cho chu xanh - hanh ((tang cua) or (tang luan)) hang cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho chu xanh - hanh ((tang cua) OR (tang luan)) hang cong dan van ban.
• Adding a wildcard symbol may retrieve word variants: cho chu xanh - hanh ((tang cua) or (tang luan)) hang cong dan van ban*.