Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
lang van » dang van, tang van, hoang van
luat tuc » luat thue
chu van » cuu van, chu han
tu sach » thu sach, su sach, te sach
cau chu » cau chiu, ca chu, cac chu
qua cau » quan cau, qua cac, qua ca
van hoi » van hoa, van hoc, van hoe
van anh » van thanh, tuan anh, van minh
y lang » o lang, _ lang, tay lang
anh vi » hanh vi, anh va, anh ve
cua te » cua tu

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 y lang van hoi. hieu qua cau chu van anh vi ((cua te) or (((luat tuc) or (cua thuoc))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y lang van hoi. hieu qua cau chu van anh vi ((cua te) OR (((luat tuc) OR (cua thuoc)))).
• Adding a wildcard symbol may retrieve word variants: tu sach y lang van hoi. hieu qua cau chu van anh vi ((cua te) or (((luat tuc) or (cua thuoc))))*.