Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
ban hanh » ban hang
hieu van » hieu va, thien van, lieu va
cua tre » cua te, cuu tre, cua triet
cau dua » cau qua, cau cua, ca dua
ky sang » ky nang, ky dang, duy sang
vai cua » dai cua, hai cua, lai cua
ky tang » ky nang, ky dang, kho tang
tao hoa » bao hoa, tao hoi, tao ho
dua ban » dia ban, cua ban, qua ban
van cau » van dau, van hau, van chat
tu sac » tu sach, tu cac, tu san
ba hoa » ma hoa, va hoa

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) or (ky tang)) ((tao hoa) or (ba hoa)). hieu van cau dua ban hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ((ky sang) OR (ky tang)) ((tao hoa) OR (ba hoa)). hieu van cau dua ban hanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ((ky sang) or (ky tang)) ((tao hoa) or (ba hoa)). hieu van cau dua ban hanh vai cua tre*.