Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
ban hanh » ban hang
chat xuc » chat huu, cam xuc, chao xu
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
cua tre » cua te, cuu tre, cua triet
cac xuc » cam xuc, cac nuoc, cac cuoc
hieu va » lieu va, hieu qua
tang ha » lang ha, tang ma, trung ha
ky tang » ky nang, ky dang, kho tang
ha hoi » hoa hoi, ha noi, xa hoi
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky tang ha hoi. hieu va ((cac xuc) or (chat xuc)) ((ban hanh) or (va thanh)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky tang ha hoi. hieu va ((cac xuc) OR (chat xuc)) ((ban hanh) OR (va thanh)) vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky tang ha hoi. hieu va ((cac xuc) or (chat xuc)) ((ban hanh) or (va thanh)) vi cua tre*.