Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
manh trong » manh truong, manh trung, manh tuong
hoc chieu » hoc thieu, ho chieu, hoc hien
anh trong » anh thuong, dinh trong, lang trong
cao dung » cao dang, cao dong, cap dung
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
cao ung » cac ung, cho ung, bao ung

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 sach - ((manh trong) or (anh trong)) ((cao dung) or (cao ung)) cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - ((manh trong) OR (anh trong)) ((cao dung) OR (cao ung)) cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - ((manh trong) or (anh trong)) ((cao dung) or (cao ung)) cong tac toan cau*.