Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh va » hang va, hanh vi
dua ban » dia ban, qua ban, mua ban
cuu tre » cua tre, cau tren, cau treo
bao hoa » ba hoa, bao hoc, bao toan
tao hoa » tao hoi, tao ho, tao hop
ky sang » ky nang, ky dang, ky tang
sac ky » cac ky, sai ky
van ca » van cau, van cua, dan ca
va cuu » va cau, va chu, va huu
tu sac » tu sach, tu cac, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky sang ((tao hoa) or (bao hoa)). hieu van ca ((dua ban) or (cua ban)) hanh va cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky sang ((tao hoa) OR (bao hoa)). hieu van ca ((dua ban) OR (cua ban)) hanh va cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky sang ((tao hoa) or (bao hoa)). hieu van ca ((dua ban) or (cua ban)) hanh va cuu tre*.