Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
thuoc va » thuc va, thuoc ma, thuong va
vai cuu » vai cua
dan vai » dan va, dan tai, dan vat
sach ky » sach y, sach ty, sach kem
cuu tre » cua tre, cau tren, cau treo
hieu va » hieu qua
lang xa » lang ha, dang xay, lang van
sac ky » cac ky, sai 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: toc ((sach ky) or (sac ky)) lang xa hoi. ((hieu va) or (lieu va)) nam thuoc va dan vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach ky) OR (sac ky)) lang xa hoi. ((hieu va) OR (lieu va)) nam thuoc va dan vai cuu tre.
• Adding a wildcard symbol may retrieve word variants: toc ((sach ky) or (sac ky)) lang xa hoi. ((hieu va) or (lieu va)) nam thuoc va dan vai cuu tre*.