Perhaps you should try some spelling variations:
thuoc va » thuc va, thuong va, thuoc tai
thuoc ma » hoc ma, duoc ma
hieu ve » hieu va, hieu van
te san » te ban, ke san, tu san
san ky » sang ky, van ky, dan ky
ve nam » he nam, va nam, le nam
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te san ky nang x ho. hieu ve nam ((thuoc va) OR (thuoc ma)) danh ((vi cua) or (di cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te san ky nang x ho. hieu ve nam ((thuoc va) OR (thuoc ma)) danh ((vi cua) OR (di cua)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te san ky nang x ho. hieu ve nam ((thuoc va) OR (thuoc ma)) danh ((vi cua) or (di cua)) tre*".