Perhaps you should try some spelling variations:
thuat xanh » thuat lanh, thuat canh, thuat nganh
chuc danh » chuc nganh, thuc hanh, chuc nang
danh khoa » doanh khoa, anh khoa, danh hoa
khoa phap » khoa phau, khoan phai, khong phap
xanh khoa » anh khoa, doanh khoa, nganh khoa
pho thong » he thong
va thuat » cac thuat, ky thuat, ki thuat
khoa pho » khoa phu, khoa khoa, khoa phau
so sach » so sanh, bo sach, co sach
sach do » sach dao, sach doi, sach de
do chuc » don chuc, do thuc, da chuc
tu sach » thu sach, su sach, te sach
sach va » sach xa, sach ha, sach dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( so sach do chuc danh khoa phap tieng ) or ( tu sach va thuat xanh khoa pho thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( so sach do chuc danh khoa phap tieng ) OR ( tu sach va thuat xanh khoa pho thong )).
• Adding a wildcard symbol may retrieve word variants: (( so sach do chuc danh khoa phap tieng ) or ( tu sach va thuat xanh khoa pho thong ))*.