Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
van hanh » van thanh, ban hanh, van anh
toc sach » hoc sach, doc sach, thuoc sach
hoa lang » hoa dan, hoa van
cam tuc » cam xuc, cam tu, nam thuc
tuc van » thuc van, truc van, tuc va
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
ve cam » ve cham, ve cac, va cam
cua tu » cua tuc, cua su, cua cu

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