Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hiem ngan » viem gan
chinh cua » chinh ca, chinh sua, hinh cua
cua nhung » va nhung
kim ngan » kim ngoc
cong tap » cuong tap, cong tac, cong tan
doan cap » doanh cao, toan cao, doan va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hiem ngan) or (kim ngan)) - hanh chinh cua nhung cong tap ((doan cap) or (dan ca))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hiem ngan) OR (kim ngan)) - hanh chinh cua nhung cong tap ((doan cap) OR (dan ca)).
• Adding a wildcard symbol may retrieve word variants: hoc ((hiem ngan) or (kim ngan)) - hanh chinh cua nhung cong tap ((doan cap) or (dan ca))*.