Perhaps you should try some spelling variations:
trinh van » trinh han, trinh quan, trinh toan
cac thuc » cach thuc, cac thu, can thuc
thuc va » thuc vat, thuc dan, thuc day
tinh va » tich va, trinh vat, tinh gia
so sanh » do sanh
su tien » su kien, su hien, tu tieng
hieu ve » hieu va, hieu van
sanh y » sinh y, anh y, hanh y
ve cac » va cac, vien cac
xang x » nang x
y xang » ty xang
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 va ((tinh va) OR (trinh van)) su tien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh y xang x hoi. hieu ve cac thuc va ((tinh va) OR (trinh van)) su tien".
• Adding a wildcard symbol may retrieve word variants: so sanh y xang x hoi. hieu ve cac thuc va ((tinh va) OR (trinh van)) su tien*.