Perhaps you should try some spelling variations:
thanh thuc » thanh thuy, nhanh thuc, thach thuc
van thanh » ban thanh, van tuan
hieu van » hieu va, thien van, lieu va
dao hanh » dao thanh, dang hanh, ban hanh
thuc dao » thuc dan, thuc day, chuc dao
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
nang xa » lang xa, nang ma, mang xa
tu ban » thu ban, te ban
di cua » dai cua, doi cua, de cua
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) or (tu ban)) ky ((nang xa) or (nang x)) hoi. hieu van thanh thuc dao hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu ban)) ky ((nang xa) OR (nang x)) hoi. hieu van thanh thuc dao hanh di cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu ban)) ky ((nang xa) or (nang x)) hoi. hieu van thanh thuc dao hanh di cua tre*.