Perhaps you should try some spelling variations:
chiet tach » chieu sach
tran quan » tran xuan, tran tuan, toan quan
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap
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 ((tran quan) or (tran quang)) dung cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((trieu tinh) OR (chiet tach)) - hanh ((tran quan) OR (tran quang)) dung cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((trieu tinh) or (chiet tach)) - hanh ((tran quan) or (tran quang)) dung cong dan toan cau*.