Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
hang hoa » hang khoa, thanh hoa, hang va
chat xuc » chat huu, cam xuc, chao xu
cua tre » cua te, cuu tre, cua triet
ky hang » ky nang, ly hang, ky dang
hoa hoi » khoa hoi, hoa hoc, hoa doi
cac xuc » cam xuc, cac nuoc, cac cuoc
va hanh » van hanh, va danh, ban hanh
vi cua » vai cua, di cua
te sac » te sach, te cac, te san
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: te sac ky hang hoa hoi. hieu qua ((cac xuc) OR (chat xuc)) ((va thanh) or (va hanh)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky hang hoa hoi. hieu qua ((cac xuc) OR (chat xuc)) ((va thanh) OR (va hanh)) vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky hang hoa hoi. hieu qua ((cac xuc) OR (chat xuc)) ((va thanh) or (va hanh)) vi cua tre".
• Adding a wildcard symbol may retrieve word variants: te sac ky hang hoa hoi. hieu qua ((cac xuc) OR (chat xuc)) ((va thanh) or (va hanh)) vi cua tre*.