Perhaps you should try some spelling variations:
trinh toan » tinh toan, thanh toan, trinh han
nhung cong » dung cong, thong cong, hang cong
trinh van » trinh han, trinh quan, dinh van
theo chu » theo chieu, cho chu, chao chu
chu lang » chi lang, chu bang, cho lang
cong tac » cong ty
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu lang - canh ((trinh van) OR (trinh toan)) nhung cong tac ((toan cau) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu lang - canh ((trinh van) OR (trinh toan)) nhung cong tac ((toan cau) or (toan tap))~".
• Adding a wildcard symbol may retrieve word variants: theo chu lang - canh ((trinh van) OR (trinh toan)) nhung cong tac ((toan cau) or (toan tap))*.