Perhaps you should try some spelling variations:
cac thuc » cach thuc, cac thu, can thuc
thuc may » thuc day, truc may, phuc may
so sanh » do sanh
hieu ve » hieu va, hieu van
tinh va » tich va, trinh van, trinh vat
su tien » su kien, su hien, tu tieng
sanh y » sinh y, anh y, hanh y
y xang » ty xang
xang x » nang x
ve cac » va cac, vien cac
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh y xang x hoi. hieu ve cac thuc may tinh va su tien~.
• Adding a wildcard symbol may retrieve word variants: so sanh y xang x hoi. hieu ve cac thuc may tinh va su tien*.