Perhaps you should try some spelling variations:
hanh luan » khanh luan, hang luan, hanh luat
hung cong » nhung cong, hung cuong, phung cong
hach toan » thanh toan, manh toan
chi danh » chi dan, chi anh, chi dinh
van hung » van dung, manh hung, van duong
tac toan » tam toan, tich toan, tac thanh
tap toan » tap doan, tap quan, bai toan
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi danh - hanh luan van hung cong ((((tac toan) OR (tap toan))) or (hach toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi danh - hanh luan van hung cong ((((tac toan) OR (tap toan))) OR (hach toan)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi danh - hanh luan van hung cong ((((tac toan) OR (tap toan))) or (hach toan)) ban".
• Adding a wildcard symbol may retrieve word variants: doi chi danh - hanh luan van hung cong ((((tac toan) OR (tap toan))) or (hach toan)) ban*.