Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh cua » tinh cua, trinh luat, trinh quan
dung cong » dung trong
hach toan » thanh toan, manh toan
khao cuu » cham cuu, chao chu, kho cua
cua dung » cua dang, cua dong, qua dung
tac toan » tap toan, tam toan, tich toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: khao cuu tinh - hanh trinh cua dung cong ((tac toan) or (hach toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: khao cuu tinh - hanh trinh cua dung cong ((tac toan) OR (hach toan)) ban.
• Adding a wildcard symbol may retrieve word variants: khao cuu tinh - hanh trinh cua dung cong ((tac toan) or (hach toan)) ban*.