Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu tinh » trieu tinh, lieu tinh, chau tinh
cuong tac » cong tac, tuong tac, cuong cac
ho chieu » theo chieu, hoc thieu, doi chieu
cua quan » qua quan, cua dan, va quan
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 tinh - thanh trung ((cua quan) OR (cua ban)) cuong tac toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - thanh trung ((cua quan) OR (cua ban)) cuong tac toan cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - thanh trung ((cua quan) OR (cua ban)) cuong tac toan cao*.