Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hieu cua » hieu qua, dieu cua, bieu cua
cua chat » cua cha, chuan chat, cao chat
chat xuc » chat huu, cam xuc, chao xu
cua tre » cua te, cuu tre, cua triet
va hanh » va thanh, ban hanh, dao hanh
va danh » va dinh, va dan, dia danh
nang ma » tang ma, sang ma, nang cao
sai ky » sac ky
ma hoi » mai hoi, xa hoi, ma hoa
ca cua » co cua
tu sai » tu bai, tu san, tu cai

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

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