Perhaps you should try some spelling variations:
danh vai » danh sai, danh va, doanh van
thu sai » thu hai, thu tai, thu san
va danh » va dinh, va dan, va hanh
cua tre » cuu tre, cua triet, dua tren
sai ky » sac ky
qua ca » qua cac, qua cua, qua cai
ca cao » ca dao, cu cao, ca cac
cao va » cao van, tao va, co va
cua te » cua tu
x hoi » xa hoi, x ho, 5 hoi
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sai ky nang ((x hoi) OR (o hoi)). hieu qua ca cao va danh vai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sai ky nang ((x hoi) OR (o hoi)). hieu qua ca cao va danh vai ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sai ky nang ((x hoi) OR (o hoi)). hieu qua ca cao va danh vai ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: thu sai ky nang ((x hoi) OR (o hoi)). hieu qua ca cao va danh vai ((cua tre) or (cua te))*.