Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
tang luan » dung luan
chu xanh » chu manh, chieu xanh, chua xang
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap
ban cua » ban quan
chuc » thuc, chua, phuc

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 (chuc nang)) - hanh ((tang luan) OR (ban cua)) thong cong dan than cau~.
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chuc nang)) - hanh ((tang luan) or (ban cua)) thong cong dan than cau*.