Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
nam thuc » nam thuoc, am thuc, nam thu
thuc van » thuc vat, thuc dan, thuc va
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
lang xa » lang ha, dang xay, lang van
hieu he » hieu ve, hiem he, hieu le
cua tuc » cua duc, luat tuc, cua nuoc
y lang » o lang, _ lang, tay lang
he nam » ha nam, nghe nam
cua tu » cua su, cua cu, cua te

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y lang xa hoi. hieu he nam thuc van hanh vi ((((cua tu) OR (cua tuc))) OR (cua thuoc))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y lang xa hoi. hieu he nam thuc van hanh vi ((((cua tu) OR (cua tuc))) or (cua thuoc))~".
• Adding a wildcard symbol may retrieve word variants: te sach y lang xa hoi. hieu he nam thuc van hanh vi ((((cua tu) OR (cua tuc))) or (cua thuoc))*.