Perhaps you should try some spelling variations:
thuyet tinh » thuyet trinh, thuyet dinh, thuyet minh
thanh dung » thanh duong, thanh tung, thanh hung
dung quang » dang quang, dung quan, luong quang
quang dung » quang trung, ung dung, cuong dung
trong tan » trong quan, trong cac, trong ca
tan toan » tan tran, tap toan, van 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 tinh) OR (thuyet kinh)) - thanh dung quang dung trong tan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thuyet tinh) OR (thuyet kinh)) - thanh dung quang dung trong tan toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((thuyet tinh) OR (thuyet kinh)) - thanh dung quang dung trong tan toan cao*.