Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chieu sang » chieu sach, chieu xanh, hieu lang
tranh cua » doanh cua
hieu van » hieu va, thien van, lieu va
manh cua » doanh cua, ban cua
cong dan » cong san, cong tan, huong dan
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: ho ((chieu sang) or (hieu van)) - hanh ((tranh cua) or (manh cua)) thuong cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu van)) - hanh ((tranh cua) OR (manh cua)) thuong cong dan van ban.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu van)) - hanh ((tranh cua) or (manh cua)) thuong cong dan van ban*.