Perhaps you should try some spelling variations:
phung cong » nhung cong, phong cong, nhung chong
tranh chua » tranh cua, trinh chuan, tranh chap
cho chinh » chon chinh, che chinh, cuoc chinh
hung cong » nhung cong, hung cuong, dung cong
ho chinh » hoc chinh, hoa chinh, do chinh
van han » van hanh, van phan, van nhan
han tap » han tai, toan tap, nhan tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chinh) OR (cho chinh)) sach - canh tranh chua ((hung cong) or (phung cong)) van han tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chinh) OR (cho chinh)) sach - canh tranh chua ((hung cong) OR (phung cong)) van han tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chinh) OR (cho chinh)) sach - canh tranh chua ((hung cong) or (phung cong)) van han tap".
• Adding a wildcard symbol may retrieve word variants: ((ho chinh) OR (cho chinh)) sach - canh tranh chua ((hung cong) or (phung cong)) van han tap*.