Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hiem ngan » kim ngan, viem gan
hoc hiem » hoc hien, hoc thieu, hoc thiet
tang cua » mang cua, hang cua, tang luan
manh cua » doanh cua, ban cua
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan ban » van ban

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 - hanh ((tang cua) or (manh cua)) nhung cong van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hiem ngan - hanh ((tang cua) OR (manh cua)) nhung cong van toan ban*.