Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hiem ngan » kim ngan, viem gan
hanh manh » hanh mang, lanh manh, hoang manh
cua nhung » va nhung
hoc hiem » hoc hien, hoc thieu, hoc thiet
manh cua » doanh cua, ban cua
cong van » cong vang, cong san, song van
toan cao » toan ban
toan tap » 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: hoc hiem ngan - hanh manh cua nhung cong van ((toan cao) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hiem ngan - hanh manh cua nhung cong van ((toan cao) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: hoc hiem ngan - hanh manh cua nhung cong van ((toan cao) OR (toan tap))*.