Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
theo chua » theo chu, ho chua, cheo cua
chua nang » chuc nang, chua xang, kha nang
hanh manh » hanh mang, hoang manh, thanh minh
lanh manh » lanh tranh, lan anh, van manh
cua nhung » va nhung
van thanh » ban thanh, van tuan
dan toan » van toan, dan than, manh toan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo chua nang - ((hanh manh) OR (lanh manh)) cua nhung cong ((dan toan) OR (van thanh)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chua nang - ((hanh manh) OR (lanh manh)) cua nhung cong ((dan toan) or (van thanh)) cau~".
• Adding a wildcard symbol may retrieve word variants: theo chua nang - ((hanh manh) OR (lanh manh)) cua nhung cong ((dan toan) or (van thanh)) cau*.