Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh cua » tinh cua, trinh luat, trinh quan
bang cong » dang cong, bang song, hang cong
hach toan » thanh toan, manh toan
theo chu » theo chieu, cho chu, chao chu
chu bang » thu bang, chuc nang, chu quang
cua bang » chua bang, cua ban, cua dang
tac toan » tam toan, tich toan, tac thanh
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: theo chu bang - hanh trinh cua bang cong ((((tac toan) or (tap toan))) or (hach toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu bang - hanh trinh cua bang cong ((((tac toan) OR (tap toan))) OR (hach toan)) cau.
• Adding a wildcard symbol may retrieve word variants: theo chu bang - hanh trinh cua bang cong ((((tac toan) or (tap toan))) or (hach toan)) cau*.