Perhaps you should try some spelling variations:
thanh trung » thanh tung
thuyet anh » thuyet kinh, thuy anh, nguyet anh
thuyet dan » thuyet va, thuyet bai, truyen dan
trung cua » truong cua, trung tuan, trung cap
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
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: hoc ((thuyet anh) or (thuyet dan)) - thanh trung cua dung cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thuyet anh) OR (thuyet dan)) - thanh trung cua dung cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((thuyet anh) or (thuyet dan)) - thanh trung cua dung cong tac toan cao*.