Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, thi chieu
hanh dang » hanh dong, anh dang, hanh dung
dung cong » dung trong
hach toan » thanh toan, manh toan
theo chu » cho chu, chao chu, theo yeu
dang van » hoang van, hang va
van dung » van dong, xay dung, tin 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: ((theo chieu) OR (theo chu)) sang - hanh dang van dung cong ((tac toan) or (hach toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo chu)) sang - hanh dang van dung cong ((tac toan) OR (hach toan)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (theo chu)) sang - hanh dang van dung cong ((tac toan) or (hach toan)) ban".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (theo chu)) sang - hanh dang van dung cong ((tac toan) or (hach toan)) ban*.