Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
canh manh » canh tranh, cach mang, van manh
lanh manh » lanh tranh, lan anh, van manh
cua thong » cua thuong, cua khong, cua tong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
ho chieu » theo chieu, hoc thieu, doi chieu
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: ((theo tieu) OR (ho chieu)) xanh - ((canh manh) OR (lanh manh)) cua thong cong manh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo tieu) or (ho chieu)) xanh - ((canh manh) OR (lanh manh)) cua thong cong manh toan ban~".
• Adding a wildcard symbol may retrieve word variants: ((theo tieu) or (ho chieu)) xanh - ((canh manh) OR (lanh manh)) cua thong cong manh toan ban*.