Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
cong manh » cong danh, duong manh, cong thanh
ho chiet » ho thiet, hoc thiet, hoa thiet
ho chieu » theo chieu, hoc thieu, doi chieu
tranh va » tranh van, trang va, trinh va
toan ban » van ban

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: ((ho chiet) OR (ho chieu)) tach - hanh tranh va nhung cong manh ((toan tap) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chiet) or (ho chieu)) tach - hanh tranh va nhung cong manh ((toan tap) OR (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: ((ho chiet) or (ho chieu)) tach - hanh tranh va nhung cong manh ((toan tap) OR (toan ban))*.