Perhaps you should try some spelling variations:
tang tao » sang tao, tang tai, nang tao
tao khoi » tao hoi, thao khoa, lao khoa
doanh va » doan va, doanh tai, doanh cua
cua tre » cua te, cuu tre, cua triet
ky tang » ky nang, ky dang, kho tang
hieu va » hieu qua
tuc va » thuc va, truc va, tuc xa
va cua » va chua, via cua, ca cua
su sac » su sach, su cac, su xac
xuc va » duc va, luc va, xac va
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky tang tao khoi. ((hieu va) or (lieu va)) cam ((xuc va) or (tuc va)) doanh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky tang tao khoi. ((hieu va) OR (lieu va)) cam ((xuc va) OR (tuc va)) doanh va cua tre.
• Adding a wildcard symbol may retrieve word variants: su sac ky tang tao khoi. ((hieu va) or (lieu va)) cam ((xuc va) or (tuc va)) doanh va cua tre*.