Perhaps you should try some spelling variations:
lam thuoc » nam thuoc, am thuc, cay thuoc
thien van » thi van
cua tre » cua te, cuu tre, cua triet
va danh » va dinh, va hanh, dia danh
van lam » van nam
lang xa » lang ha, dang xay, lang van
sac ky » cac ky
va dan » ca dan, va dao, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sac ky) OR (sai ky)) lang xa hoi. thien van lam thuoc ((va danh) or (va dan)) dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sac ky) OR (sai ky)) lang xa hoi. thien van lam thuoc ((va danh) OR (va dan)) dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sac ky) OR (sai ky)) lang xa hoi. thien van lam thuoc ((va danh) or (va dan)) dai cua tre".
• Adding a wildcard symbol may retrieve word variants: te ((sac ky) OR (sai ky)) lang xa hoi. thien van lam thuoc ((va danh) or (va dan)) dai cua tre*.