Perhaps you should try some spelling variations:
doanh khoa » toan khoa
tien doanh » trien doanh, lien doanh, toan doanh
phu thong » pho thong, phap thong, khau thong
hanh thuc » nhanh thuc, hanh thuoc, hanh phuc
thuc tien » thuc hien
sach tri » sach tai, sach tren, sach truc
khoa phu » khoa phau, khoa thu, hoa phu
tu sach » thu sach, su sach, te sach
tri tri » tri tai, trien tri, tran tri
tu hanh » du hanh, lu hanh, thuc hanh

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 tri tri doanh khoa phu thong ) or ( tu hanh thuc tien doanh khoa phu thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach tri tri doanh khoa phu thong ) OR ( tu hanh thuc tien doanh khoa phu thong )).
• Adding a wildcard symbol may retrieve word variants: (( tu sach tri tri doanh khoa phu thong ) or ( tu hanh thuc tien doanh khoa phu thong ))*.