Perhaps you should try some spelling variations:
thuat nganh » thuat lanh, thuat canh, luat nganh
pham thuong » phan thuong, pham hong
nganh khoa » nganh hoa, nganh khong, doanh khoa
phu thong » pho thong, phap thong, khau thong
tri thuoc » tri thuc, tri hoc, tin thuoc
thuoc ban » thuoc tan, thuoc dang, thu ban
khoa pham » khoa kham, khoa phau, khoa cham
ki thuat » ky thuat
khoa phu » khoa phau, khoa thu, hoa phu
thu sach » tu sach, thuat sach, thuoc sach
sach tri » sach tai, sach tren, sach truc
ban khoa » san khoa, van khoa, ba khoa
vu sach » vu bach, su sach, vu khach
sach ki » sach kinh, sach bai, sach kem

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( vu sach ki thuat nganh khoa phu thong ) or ( thu sach tri thuoc ban khoa pham thuong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( vu sach ki thuat nganh khoa phu thong ) OR ( thu sach tri thuoc ban khoa pham thuong ))*.