Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nha thuoc, cay thuoc
hieu van » hieu va, thien van, lieu va
van anh » van thanh, tuan anh, van minh
cua tre » cua te, cuu tre, cua triet
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
anh di » danh di, xanh di, anh d
di cua » dai cua, doi cua, de cua
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky nang x hoi. hieu van ((nam thuoc) or (nam thu)) van anh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky nang x hoi. hieu van ((nam thuoc) OR (nam thu)) van anh di cua tre.
• Adding a wildcard symbol may retrieve word variants: tu san ky nang x hoi. hieu van ((nam thuoc) or (nam thu)) van anh di cua tre*.