Perhaps you should try some spelling variations:
lam thuoc » nam thuoc, am thuc, cay thuoc
thanh ve » hanh ve, thanh va, thanh vien
hieu van » hieu va, thien van, lieu va
lam duoc » nam duoc, luat duoc, tao duoc
te sach » toc sach
hanh va » hang va, hanh vi
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach tu, sach thu
lang xa » lang ha, dang xay, lang van
ty lang » tay lang, ty xang, ty hang

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