Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hiem ngan » kim ngan, viem gan
hanh sinh » hanh tinh, hanh dinh, hinh sinh
bang cong » dang cong, bang song, hang cong
doc hiem » doc hieu, hoc hien, doc viet
sinh cua » manh cua, dinh cuu, sinh va
van tuan » van quan, van ban, anh tuan
tuan cao » toan cao, juan cao, quang cao

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 sinh cua ((nhung cong) or (bang cong)) van tuan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hiem ngan - hanh sinh cua ((nhung cong) OR (bang cong)) van tuan cao.
• Adding a wildcard symbol may retrieve word variants: doc hiem ngan - hanh sinh cua ((nhung cong) or (bang cong)) van tuan cao*.