Perhaps you should try some spelling variations:
chiet tach » chieu sach
cong thanh » cong trinh, cong tan, truong thanh
dong thanh » truong thanh
thang cua » thong cua, hang cua, than cua
ho chiet » ho chieu, ho thiet, hoc thiet
tang cua » mang cua, hang cua, tang luan
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 chiet tach - hanh ((thang cua) or (tang cua)) dang ((cong thanh) OR (dong thanh)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - hanh ((thang cua) OR (tang cua)) dang ((cong thanh) OR (dong thanh)) toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - hanh ((thang cua) or (tang cua)) dang ((cong thanh) OR (dong thanh)) toan cao*".