Perhaps you should try some spelling variations:
thuc dan » thuc hanh, hoc dan, thuc vat
hieu va » lieu va, hieu qua
va tham » van tham, va cham, va thanh
cua tre » cua te, cuu tre, cua triet
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

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 x hoi. hieu va tham ((xuc va) or (((tuc va) or (thuc dan)))) hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang x hoi. hieu va tham ((xuc va) OR (((tuc va) OR (thuc dan)))) hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang x hoi. hieu va tham ((xuc va) or (((tuc va) or (thuc dan)))) hanh vi cua tre*.