Perhaps you should try some spelling variations:
vien cac » vien bach, vien dai, vien da
danh dai » danh dau, danh di, danh sai
dap phoi » cap phoi, gap phoi, dap phap
cua tre » cua te, cuu tre, cua triet
ban ky » van ky, dan ky
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
va dap » va dao, va dau
tu ban » thu ban, te ban
ky va » ly va, ke va, my va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ban ky va dap phoi. hieu ((va cac) or (vien cac)) ((xuc va) OR (tuc va)) danh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ban ky va dap phoi. hieu ((va cac) OR (vien cac)) ((xuc va) OR (tuc va)) danh dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ban ky va dap phoi. hieu ((va cac) or (vien cac)) ((xuc va) OR (tuc va)) danh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu ban ky va dap phoi. hieu ((va cac) or (vien cac)) ((xuc va) OR (tuc va)) danh dai cua tre*.