Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chuc nganh » hoc nganh, cac nganh, chuc danh
nguong dan » huong dan
hanh tang » hanh trang, anh tang, hanh mang
ho chieu » theo chieu, hoc thieu, doi chieu
dan toan » van toan, dan than, manh toan
toan ban » van ban

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 tang ((chuc nganh) or (chuc nang)) nguong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh tang ((chuc nganh) OR (chuc nang)) nguong dan toan ban*.