Perhaps you should try some spelling variations:
thuc doanh » thuc hanh, thuc dan, chuc danh
phan thong » phan thuong, phan hong, phan tong
truc luan » thuc luan, truc quan, thuoc luan
luan khoa » khuan khoa, toan khoa, luan hoan
pho thong » he thong
sach tren » sach tien, sach tranh
tren thuc » trien thuc, tron thuc, trinh thuc
doanh hoa » doanh khoa, doanh hoan, danh hoa
khoa pho » khoa phu, khoa khoa, khoa phau
thu sach » tu sach, thuat sach, thuoc sach
hoa phan » hoa dan, co phan
tu cach » tu cac
cach tu » cach thuc
tu truc » cau truc, tu thuoc, tu trung

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu cach tu truc luan khoa pho thong ) or ( thu sach tren thuc doanh hoa phan thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu cach tu truc luan khoa pho thong ) OR ( thu sach tren thuc doanh hoa phan thong )).
• Adding a wildcard symbol may retrieve word variants: (( tu cach tu truc luan khoa pho thong ) or ( thu sach tren thuc doanh hoa phan thong ))*.