Perhaps you should try some spelling variations:
trong thuat » trong hoat, trong thu, trong phat
nhung cong » dung cong, thong cong, hang cong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
theo ha » theo phap, theo chu, thep nha
ha tinh » va tinh, may tinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ha tinh - thanh ((trong thuat) or (tran quang)) nhung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ha tinh - thanh ((trong thuat) OR (tran quang)) nhung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ha tinh - thanh ((trong thuat) or (tran quang)) nhung cong tac toan cau*.