Perhaps you should try some spelling variations:
trinh vi » trinh va, trinh ve, trinh viet
va trinh » van trinh, va tinh, lap trinh
cua tre » cua te, cuu tre, cua triet
nang xa » lang xa, nang ma, mang xa
va cao » va cac, va co, va dao
vi cua » vai cua, di cua
xuc va » duc va, tuc va, luc va
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
va cam » va cham, va cac, va 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 xa) or (nang x)) hoi. hieu ((va cam) or (va cao)) xuc va trinh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky ((nang xa) OR (nang x)) hoi. hieu ((va cam) OR (va cao)) xuc va trinh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sai ky ((nang xa) or (nang x)) hoi. hieu ((va cam) or (va cao)) xuc va trinh vi cua tre*.