Perhaps you should try some spelling variations:
trinh chan » trinh chuan, trinh han, trinh phan
trinh quan » tinh quang, trinh luat, trinh han
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
theo chu » theo chieu, cho chu, chao chu
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (theo chu)) tinh - hanh ((trinh chan) or (trinh quan)) dung cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chu)) tinh - hanh ((trinh chan) OR (trinh quan)) dung cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chu)) tinh - hanh ((trinh chan) or (trinh quan)) dung cong tac toan cao*.