Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
mot chieu » ho chieu
doi chieu » doc hieu, doi chi, ho chieu
hanh mang » nhanh mang, hanh trang, nhanh lang
cua thong » cua thuong, cua tong, suat thong
cua khong » hua khong, cua phuong, cua thuong
thanh han » thanh phan, thanh nhan, thanh hang
han tai » hang tai, nhan tai, van tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (doi chieu)) sach - hanh mang ((cua thong) OR (cua khong)) cong thanh han tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (doi chieu)) sach - hanh mang ((cua thong) OR (cua khong)) cong thanh han tai*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((mot chieu) or (doi chieu)) sach - hanh mang ((cua thong) OR (cua khong)) cong thanh han tai*".