Perhaps you should try some spelling variations:
lam thuoc » nam thuoc, am thuc, cay thuoc
thuoc va » thuc va, thuoc ma, thuong va
giau cua » gian cua, dieu cua, bieu cua
sach thu » sach thue, sach thieu, sach tham
xach tay » canh tay
gia cua » gian cua, gia cuc, nghia cua
va hanh » van hanh, va thanh, va danh
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
va lam » van lam, va lap

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

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