Perhaps you should try some spelling variations:
hanh sinh » hanh tinh, hanh dinh, hinh sinh
dang cong » dung cong
ho trieu » mot trieu, 25 trieu, 30 trieu
sinh cua » manh cua, dinh cuu, sinh va
cua dang » cua cong, cua ban
tan toan » tan tran, van toan, tam toan
dan toan » van toan, dan than, manh toan
tap toan » tap doan, tap quan, bai toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho trieu tinh - hanh sinh cua dang cong ((((tan toan) or (dan toan))) or (tap toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho trieu tinh - hanh sinh cua dang cong ((((tan toan) OR (dan toan))) OR (tap toan)) cau.
• Adding a wildcard symbol may retrieve word variants: ho trieu tinh - hanh sinh cua dang cong ((((tan toan) or (dan toan))) or (tap toan)) cau*.