Perhaps you should try some spelling variations:
chiet tach » chieu sach
dong manh » duong manh, dong anh, dang manh
manh toan » thanh toan, anh tuan, tinh toan
tang cua » mang cua, tang luan, thong cua
hang cua » mang cua, hang ca, huong cua
toan tap » toan ban
tinh » trinh, dinh, minh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((trieu tinh) or (chiet tach)) - hanh ((tang cua) OR (hang cua)) cong dong manh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((trieu tinh) OR (chiet tach)) - hanh ((tang cua) OR (hang cua)) cong dong manh toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((trieu tinh) or (chiet tach)) - hanh ((tang cua) OR (hang cua)) cong dong manh toan tap".
• Adding a wildcard symbol may retrieve word variants: theo ((trieu tinh) or (chiet tach)) - hanh ((tang cua) OR (hang cua)) cong dong manh toan tap*.