Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
xuc van » duc van, luc van, vuc van
cai xuc » cam xuc, chat xuc
qua cai » qua hai, qua cac, qua ca
cuu tre » cua tre, cau tren, cau treo
sach ty » sach y, sach thu, xach tay
nang ma » tang ma, sang ma, mang may
sach tu » sach thu, cach tu, sach uu
vi cuu » vi luu, vinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach ty) or (sach tu)) ((nang ma) or (nang cao)) hoi. hieu qua cai xuc van hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach tu)) ((nang ma) OR (nang cao)) hoi. hieu qua cai xuc van hanh vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) or (sach tu)) ((nang ma) or (nang cao)) hoi. hieu qua cai xuc van hanh vi cuu tre*.