Perhaps you should try some spelling variations:
chiet tach » chieu sach
quan trong » gian trong
cong quan » cuong quan, cong quang, tong quan
thong ban » thong van, trong ban, thong bai
ho chiet » ho chieu, ho thiet, hoc thiet
thong va » thong cua, truong va, thong qua
than cau » toan cau, phan cau, than cap

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 - thanh cong quan trong ((thong ban) or (thong va)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - thanh cong quan trong ((thong ban) OR (thong va)) than cau.
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - thanh cong quan trong ((thong ban) or (thong va)) than cau*.