Perhaps you should try some spelling variations:
cap nuoc » dat nuoc
so sanh » do sanh
sanh ty » sach ty, canh tay
ty nang » ky nang, ty xang, ty hang
hieu ve » hieu va, hieu van
danh de » dan de, dang de, danh di
hanh de » hanh ve, hanh kem
ve cap » ve cac, le cap, ve cai
cua te » cua tu
x hoi » xa hoi, o hoi, 5 hoi

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 ty nang ((x hoi) OR (x ho)). hieu ve cap nuoc va ((danh de) or (hanh de)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh ty nang ((x hoi) OR (x ho)). hieu ve cap nuoc va ((danh de) OR (hanh de)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh ty nang ((x hoi) OR (x ho)). hieu ve cap nuoc va ((danh de) or (hanh de)) cua te".
• Adding a wildcard symbol may retrieve word variants: so sanh ty nang ((x hoi) OR (x ho)). hieu ve cap nuoc va ((danh de) or (hanh de)) cua te*.