Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
cam truc » cau truc, nam truc, lam truoc
te sach » toc sach
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
cua tuc » cua duc, cua tu, luat tuc
sach o » sach lo, sac o, sach y
o lang » hoa lang, hoi lang
ve cam » ve cham, ve cac, va cam

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach o lang xa hoi. hieu ve cam truc va hanh vi ((cua tuc) OR (cua thuoc))~".
• Adding a wildcard symbol may retrieve word variants: te sach o lang xa hoi. hieu ve cam truc va hanh vi ((cua tuc) OR (cua thuoc))*.