Perhaps you should try some spelling variations:
tham nuoc » thay nuoc, thoat nuoc, nha nuoc
cau tren » cu tren, dau tren, ca tren
hieu van » hieu va, thien van, lieu va
danh van » doanh van, dang van, dinh van
tham xuc » tham thuc, pham duc, cam xuc
sanh ky » hanh ky, sang ky, nganh ky
va danh » va dinh, va dan, va hanh
van cau » van dau, van hau, van chat
so sanh » do sanh
o hoi » co hoi, o hoc, o hai
x hoi » xa hoi, x ho, 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 ky nang ((x hoi) OR (o hoi)). hieu van ((tham xuc) or (tham nuoc)) va danh van cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh ky nang ((x hoi) OR (o hoi)). hieu van ((tham xuc) OR (tham nuoc)) va danh van cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh ky nang ((x hoi) OR (o hoi)). hieu van ((tham xuc) or (tham nuoc)) va danh van cau tren".
• Adding a wildcard symbol may retrieve word variants: so sanh ky nang ((x hoi) OR (o hoi)). hieu van ((tham xuc) or (tham nuoc)) va danh van cau tren*.