Perhaps you should try some spelling variations:
hien danh » thien danh, hien hanh, hien nhanh
cua nhung » va nhung
cong manh » cong danh, duong manh, cong thanh
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cong dan » cong san, cong tan, huong dan
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 hien danh - anh tang cua nhung ((cong manh) or (cong dan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien danh - anh tang cua nhung ((cong manh) OR (cong dan)) toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc hien danh - anh tang cua nhung ((cong manh) or (cong dan)) toan ban*.