Perhaps you should try some spelling variations:
hoc chieu » hoc thieu, ho chieu, hoc dieu
dung cong » dung trong
cong cua » dong cua, huong cua, thong cua
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap
cong cu » chung cu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc hien)) sach - thanh ((cong cua) OR (cong cu)) dung cong tan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) or (hoc hien)) sach - thanh ((cong cua) OR (cong cu)) dung cong tan toan cau~".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (hoc hien)) sach - thanh ((cong cua) OR (cong cu)) dung cong tan toan cau*.