Perhaps you should try some spelling variations:
hanh dao » lanh dao, thanh dat, thanh dam
cua tre » cua te, cuu tre, cua triet
dao cua » dai cua, day cua, dan cua
va hanh » van hanh, va thanh, va danh
hieu va » lieu va, hieu qua
tang ma » mang may, tang van
nang ma » sang ma, nang cao, mang may
lai ky » sai ky, dai ky
dam tu » nam tu, cam tu, tam tu
te lai » te tai, te bai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te lai ky ((nang ma) OR (tang ma)) hoi. hieu va ((cam xuc) OR (dam tu)) va hanh dao cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te lai ky ((nang ma) OR (tang ma)) hoi. hieu va ((cam xuc) or (dam tu)) va hanh dao cua tre~".
• Adding a wildcard symbol may retrieve word variants: te lai ky ((nang ma) OR (tang ma)) hoi. hieu va ((cam xuc) or (dam tu)) va hanh dao cua tre*.