Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hiem ngan » kim ngan, viem gan
doc hiem » doc hieu, hoc hien, doc viet
chinh va » chinh tai, hanh va, tinh va
chinh ta » chinh tai, chinh tri
cong dan » cong san, cong tan, huong dan
toan tap » toan ban
toan cao » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hiem ngan - hanh ((chinh va) or (chinh ta)) thong cong dan ((toan tap) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hiem ngan - hanh ((chinh va) OR (chinh ta)) thong cong dan ((toan tap) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: doc hiem ngan - hanh ((chinh va) or (chinh ta)) thong cong dan ((toan tap) or (toan cao))*.