Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
hanh tai » thanh tai, hang tai, han tai
van hanh » van thanh, ban hanh, van anh
lang van » dang van, hoang van, giang van
tang van » dang van, hoang van, trong van
tai cua » thai cua, tai cuc, tri cua
xuc van » duc van, luc van, vuc van
hieu ve » hieu va, hieu van
te sach » toc sach
sach tu » sach thu, cach tu, sach ty
xang xa » lang xa, mang xa, ang xa
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach tu ((xang xa) or (((lang van) OR (tang van)))) hoi. hieu ve cam xuc van hanh tai cua thuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu ((xang xa) OR (((lang van) OR (tang van)))) hoi. hieu ve cam xuc van hanh tai cua thuoc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tu ((xang xa) or (((lang van) OR (tang van)))) hoi. hieu ve cam xuc van hanh tai cua thuoc".
• Adding a wildcard symbol may retrieve word variants: te sach tu ((xang xa) or (((lang van) OR (tang van)))) hoi. hieu ve cam xuc van hanh tai cua thuoc*.