Perhaps you should try some spelling variations:
phan thuong » hang thuong, phan xuong
mach trung » manh trung, mach thuong, dac trung
trung truc » trung thuc, trang truc, trung thuoc
cach thuoc » cach thuc, cay thuoc, cach thoi
khoan phan » khoan phai, khoan thanh, hoa phan
bach khoa » anh khoa
pho thong » he thong
thuoc tri » thuoc tai, thuoc tru, thuoc tren
khoa pho » khoa phu, khoa khoa, khoa phau
tu mach » tu cach, tu manh, tu hach
ve cach » va cach, ve cac, ve canh
tri cac » tri mac, tai cac, tri dac

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu mach trung truc bach khoa pho thong ) or ( ve cach thuoc tri cac khoan phan thuong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu mach trung truc bach khoa pho thong ) OR ( ve cach thuoc tri cac khoan phan thuong ))*.