Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
thi chieu » thi chien, thi hieu, theo chieu
cong manh » cong danh, duong manh, hoang manh
ho chieu » theo chieu, hoc thieu, doi chieu
chinh ta » chinh tai, chinh va, chinh tri
ta nhung » tay nhung, va nhung, tu nhung
toan cao » toan ban, toan tap

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 (thi chieu)) sach - hanh chinh ta nhung ((cong manh) OR (cong thanh)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (thi chieu)) sach - hanh chinh ta nhung ((cong manh) OR (cong thanh)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (thi chieu)) sach - hanh chinh ta nhung ((cong manh) OR (cong thanh)) toan cao".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (thi chieu)) sach - hanh chinh ta nhung ((cong manh) OR (cong thanh)) toan cao*.