Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, nghiep nganh
hieu manh » chieu xanh, dieu hanh, hien hanh
lanh manh » lanh tranh, lan anh, van manh
manh chua » manh cua, tranh chua, benh chua
chua dong » cua dong, ha dong, huy dong
dong cong » duong cong, dung cong, dang cong
cong dan » cong san, cong tan, huong dan
dan hanh » dang hanh, dan khanh, dan thanh
hanh sua » hinh su, hanh va, hanh tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu nganh) or (hieu manh)) - lanh manh chua dong cong dan hanh sua~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu nganh) OR (hieu manh)) - lanh manh chua dong cong dan hanh sua*.