Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
thu sach » thuat sach, thuoc sach, thu hoach
dinh vi » dinh ve, dinh viet, dinh tri
xa dinh » xac dinh, va dinh, ba dinh
lam tuc » lam thuoc, lam truoc, luat tuc
tu sach » su sach, te sach, vu sach
tu cach » tu cac
va lam » van lam, va lap
vi cua » vai cua, di cua
nang o » nang co, nang ho, nang ro
o hoi » co hoi, o hoc, o hai

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) OR (tu cach))) or (thu sach)) ky nang o hoi. lieu va lam tuc xa dinh vi cua thuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((tu sach) OR (tu cach))) OR (thu sach)) ky nang o hoi. lieu va lam tuc xa dinh vi cua thuoc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((tu sach) OR (tu cach))) or (thu sach)) ky nang o hoi. lieu va lam tuc xa dinh vi cua thuoc".
• Adding a wildcard symbol may retrieve word variants: ((((tu sach) OR (tu cach))) or (thu sach)) ky nang o hoi. lieu va lam tuc xa dinh vi cua thuoc*.