Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
nam tuc » nam thuc, nam truc, nam thuoc
cuu tre » cua tre, cau tren, cau treo
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
nang o » nang co, nang ho, nang ro
nam tu » nam thu, nam thuc
vi cuu » vi luu, vinh cuu
o hoi » co hoi, o hoc, o hai

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 nang o hoi. hieu van ((nam tuc) or (nam tu)) va thanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang o hoi. hieu van ((nam tuc) OR (nam tu)) va thanh vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang o hoi. hieu van ((nam tuc) or (nam tu)) va thanh vi cuu tre*.