Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
viec cam » viec lam, viec cua, viec va
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 » nang x, mang xa, ang xa
lang xa » lang ha, dang xay, lang van
nang ma » tang ma, sang ma, nang cao
vi cua » vai cua, di cua
xuc va » duc va, tuc va, luc va
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((((nang xa) OR (lang xa))) OR (nang ma)) hoi. hieu viec cam xuc va trinh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky ((((nang xa) OR (lang xa))) or (nang ma)) hoi. hieu viec cam xuc va trinh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((((nang xa) OR (lang xa))) or (nang ma)) hoi. hieu viec cam xuc va trinh vi cua tre*.