Perhaps you should try some spelling variations:
theo chinh » thien chinh, te chinh, thi chinh
hanh doanh » hang doanh, chinh doanh, doanh doanh
cong thanh » dong thanh, cong trinh, truong thanh
che chinh » te chinh
tai nhung » thai nhung, thi nhung, tai hung
thanh tap » thanh lap, thanh tai, thanh tay
cong tan » cong tac, cong san, cong ty

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chinh) OR (che chinh)) sach - hanh doanh tai nhung ((cong tan) or (cong thanh)) thanh tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chinh) OR (che chinh)) sach - hanh doanh tai nhung ((cong tan) OR (cong thanh)) thanh tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chinh) OR (che chinh)) sach - hanh doanh tai nhung ((cong tan) or (cong thanh)) thanh tap".
• Adding a wildcard symbol may retrieve word variants: ((theo chinh) OR (che chinh)) sach - hanh doanh tai nhung ((cong tan) or (cong thanh)) thanh tap*.