Perhaps you should try some spelling variations:
giai chieu » gioi thieu, gian hieu, gia hieu
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
nhung cong » dung cong, thong cong, hang cong
manh hung » anh huong
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
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: giai chieu sach - ((hanh trung) or (manh hung)) cua nhung cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: giai chieu sach - ((hanh trung) OR (manh hung)) cua nhung cong tan toan cao*.