Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
anh tang » anh bang, anh dang, anh nang
cong tac » cong ty
than cau » toan cau, phan cau, than cap
toan tap » toan ban
tang va » trang va, tang van, thang va
hanh » hinh
thanh » thinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hanh chinh sach - anh tang va nhung ((cong tac) or (cong thanh)) ((than cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hanh chinh sach - anh tang va nhung ((cong tac) OR (cong thanh)) ((than cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hanh chinh sach - anh tang va nhung ((cong tac) or (cong thanh)) ((than cau) or (toan tap))*.