Perhaps you should try some spelling variations:
quang dung » quang trung, ung dung, cuong dung
hoc chieu » hoc thieu, ho chieu, hoc dieu
van manh » van minh, van anh, van hanh
cua dang » cua cong, cua ban
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 chieu) OR (hoc hien)) sach - van manh ((cua dang) or (quang dung)) cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc hien)) sach - van manh ((cua dang) OR (quang dung)) cong tac toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) OR (hoc hien)) sach - van manh ((cua dang) or (quang dung)) cong tac toan cao".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) OR (hoc hien)) sach - van manh ((cua dang) or (quang dung)) cong tac toan cao*.