Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
thuoc dan » thuoc dang, thuc dan, thuoc ban
dan thanh » dang thanh, danh thanh, ban thanh
dieu cua » dieu tra
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
y nang » ky nang, ly nang, v nang
ve nam » he nam, va nam, le nam
de cua » le cua
te cua » tue cua, le cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach y nang xa hoi. hieu ve nam thuoc dan thanh ((((de cua) OR (dieu cua))) or (te cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang xa hoi. hieu ve nam thuoc dan thanh ((((de cua) OR (dieu cua))) OR (te cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y nang xa hoi. hieu ve nam thuoc dan thanh ((((de cua) OR (dieu cua))) or (te cua)) te".
• Adding a wildcard symbol may retrieve word variants: vu sach y nang xa hoi. hieu ve nam thuoc dan thanh ((((de cua) OR (dieu cua))) or (te cua)) te*.