Perhaps you should try some spelling variations:
quan trong » gian trong
doi chieu » doc hieu, doi chi, mot chieu
hanh tong » hanh trong, han tong, hanh dong
tong quan » thong quan, tong luan, luong quan
ho chieu » theo chieu, hoc thieu, mot chieu
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan tap » toan ban

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 (doi chieu))) or (hoc hien)) sach - hanh tong quan trong cong san toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((ho chieu) OR (doi chieu))) OR (hoc hien)) sach - hanh tong quan trong cong san toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((ho chieu) OR (doi chieu))) or (hoc hien)) sach - hanh tong quan trong cong san toan tap".
• Adding a wildcard symbol may retrieve word variants: ((((ho chieu) OR (doi chieu))) or (hoc hien)) sach - hanh tong quan trong cong san toan tap*.