Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tang thanh » dang thanh, trung thanh, hoang thanh
canh manh » lanh manh, canh tranh, van manh
cua nhung » va nhung
cong tang » cong thang, cong tan, cong lang
thanh chu » thanh chau, thanh cha, thanh thu
ho thiet » hoc thiet, hoa thiet, so thiet
ho chieu » theo chieu, hoc thieu, doi chieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho thiet) or (ho chieu)) tach - ((canh manh) OR (cach mang)) cua nhung cong tang thanh chu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho thiet) OR (ho chieu)) tach - ((canh manh) OR (cach mang)) cua nhung cong tang thanh chu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho thiet) or (ho chieu)) tach - ((canh manh) OR (cach mang)) cua nhung cong tang thanh chu".
• Adding a wildcard symbol may retrieve word variants: ((ho thiet) or (ho chieu)) tach - ((canh manh) OR (cach mang)) cua nhung cong tang thanh chu*.