Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tang luan » dung luan
chu xanh » chieu xanh, chua xang, chuc danh
chu manh » ho manh, chu han, chu van
hang cua » mang cua, hang ca, huong cua
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan ban » van ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chu manh)) - hanh ((tang luan) OR (hang cua)) nhung cong van toan ban~.
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chu manh)) - hanh ((tang luan) or (hang cua)) nhung cong van toan ban*.