Perhaps you should try some spelling variations:
khong cong » thong cong, chong cong, khong con
khong cang » thong cong, hong bang, khong dung
doi chieu » doc hieu, doi chi, mot chieu
canh manh » lanh manh, canh tranh, cach mang
ho chieu » theo chieu, hoc thieu, mot chieu
manh cua » doanh cua, ban cua
van toan » van tuan, van tan, van thanh
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (doi chieu)) xanh - canh manh cua ((khong cong) OR (khong cang)) van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) xanh - canh manh cua ((khong cong) OR (khong cang)) van toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doi chieu)) xanh - canh manh cua ((khong cong) OR (khong cang)) van toan ban".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chieu)) xanh - canh manh cua ((khong cong) OR (khong cang)) van toan ban*.