Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
cong thanh » dong thanh, cong tan, truong thanh
nhan dang » nhan dan, phan dang, tran dang
cua trong » cua truong, cua trung, qua trong
dang cua » dung cua, dong cua, mang cua
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: theo chieu sach - nhan dang cua trong ((cong thanh) OR (cong trinh)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - nhan dang cua trong ((cong thanh) OR (cong trinh)) toan cao".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - nhan dang cua trong ((cong thanh) OR (cong trinh)) toan cao*.