Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
thien van » thi van
van hanh » van thanh, ban hanh, van anh
mang xa » mang may, dang xay, mang cua
lang xa » lang ha, dang xay, lang van
sach ky » sac ky, sach y, sach ty
van cam » van nam, van lam, van cau
xuc van » duc van, luc van, xuc ban
hanh di » hanh vi, hanh de, hang di
cua tuc » cua duc, cua tu, luat tuc
tu sach » thu sach, su sach, te sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky ((mang xa) or (lang xa)) hoi. thien van cam xuc van hanh di ((cua tuc) OR (cua thuoc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((mang xa) OR (lang xa)) hoi. thien van cam xuc van hanh di ((cua tuc) OR (cua thuoc))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky ((mang xa) or (lang xa)) hoi. thien van cam xuc van hanh di ((cua tuc) OR (cua thuoc))*".