Perhaps you should try some spelling variations:
lam thuoc » nam thuoc, am thuc, cay thuoc
hieu van » hieu va, thien van, lieu va
thanh va » thanh van, hanh va, thanh ha
thuoc va » thuc va, thuoc ma, thuong va
te sach » toc sach
van lam » van nam
ty hang » ly hang, ty xang, thi hang
ty lang » tay lang, ty xang, tu lang
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((ty lang) OR (ty hang)) xa hoi. hieu van lam thuoc va ((hanh vi) or (thanh va)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty lang) OR (ty hang)) xa hoi. hieu van lam thuoc va ((hanh vi) OR (thanh va)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty lang) OR (ty hang)) xa hoi. hieu van lam thuoc va ((hanh vi) or (thanh va)) cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty lang) OR (ty hang)) xa hoi. hieu van lam thuoc va ((hanh vi) or (thanh va)) cua te*.