Perhaps you should try some spelling variations:
phan thuong » hang thuong, phan xuong
khoan phan » khoan phai, khoan thanh, hoa phan
phap thong » phap phong, phap chong, pho thong
chuc danh » chuc nganh, thuc hanh, chuc nang
danh khoa » doanh khoa, anh khoa, danh hoa
khoa phap » khoa phau, khoan phai, khong phap
sach tai » sach bai, sach tham, sach dao
tai chuc » tai cuc, toi chuc, tai chung
thuc cac » thuc cach, tuc cac, phuc cac
tu sach » thu sach, su sach, te sach
sach do » sach dao, sach doi, sach de
do thuc » hoc thuc, dan thuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu sach tai chuc danh khoa phap thong ) or ( tu sach do thuc cac khoan phan thuong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach tai chuc danh khoa phap thong ) OR ( tu sach do thuc cac khoan phan thuong )).
• Adding a wildcard symbol may retrieve word variants: (( tu sach tai chuc danh khoa phap thong ) or ( tu sach do thuc cac khoan phan thuong ))*.