Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tieu xanh » tieu danh, chieu xanh, dieu hanh
cua nhung » va nhung
phan dau » phan tu, hang dau
cong dan » cong san, cong tan, huong dan
than tap » toan tap, han tap, phan tap
dau cua » dai cua, day cua, cau cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - phan dau cua nhung cong dan ((than tap) or (phan lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - phan dau cua nhung cong dan ((than tap) OR (phan lap)).
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - phan dau cua nhung cong dan ((than tap) or (phan lap))*.