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
tranh cua » doanh cua, manh cua
ho chieu » theo chieu, hoc thieu, mot chieu
tap quan » tac quan, hai quan
quan cau » quang cao, toan cau, quan ha

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)) sach - canh tranh cua ((khong cong) OR (khong cang)) tap quan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) sach - canh tranh cua ((khong cong) OR (khong cang)) tap quan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doi chieu)) sach - canh tranh cua ((khong cong) OR (khong cang)) tap quan cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chieu)) sach - canh tranh cua ((khong cong) OR (khong cang)) tap quan cau*.