Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
trung hanh » trung thanh, trung khanh, trung anh
hanh nhung » anh nhung, canh nhung, doanh nhung
cuong tap » luong tap, cong tac, luong tai
ho chieu » theo chieu, hoc thieu, doi chieu
cong tap » cong tac, cong tan, tong tap
toan cau » 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: ho chieu sach - hanh trung hanh nhung ((cong tap) or (cuong tap)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh trung hanh nhung ((cong tap) OR (cuong tap)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh trung hanh nhung ((cong tap) or (cuong tap)) toan cau*.