Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
bien tinh » bi tinh, yen tinh, ban tinh
manh hung » anh huong
cua nhung » va nhung
hung cua » huong cua, chung cua, khung cua
cong dan » cong san, cong tan, huong dan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((bien tinh) OR (diep tinh)) - manh hung cua nhung cong dan ((toan cao) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((bien tinh) OR (diep tinh)) - manh hung cua nhung cong dan ((toan cao) OR (van ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((bien tinh) OR (diep tinh)) - manh hung cua nhung cong dan ((toan cao) or (van ban))".
• Adding a wildcard symbol may retrieve word variants: hoc ((bien tinh) OR (diep tinh)) - manh hung cua nhung cong dan ((toan cao) or (van ban))*.