Perhaps you should try some spelling variations:
lam thuoc » nam thuoc, am thuc, cay thuoc
thuoc gia » thuoc giao, quoc gia, thuoc ma
thanh hai » thanh phan, thanh hoa
hieu van » hieu va, thien van, lieu va
bach ky » bac ky
van lam » van nam
nang o » nang co, nang ho, nang ro
cua tu » cua tuc, cua su, cua te
cua cu » cua chu, cua cau, cua su
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: vu bach ky nang o hoi. hieu van lam thuoc gia ((thanh hai) or (thanh san)) ((cua tu) or (cua cu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu bach ky nang o hoi. hieu van lam thuoc gia ((thanh hai) OR (thanh san)) ((cua tu) OR (cua cu)).
• Adding a wildcard symbol may retrieve word variants: vu bach ky nang o hoi. hieu van lam thuoc gia ((thanh hai) or (thanh san)) ((cua tu) or (cua cu))*.