Perhaps you should try some spelling variations:
ban thanh » ban hang
ban hanh » ban hang
chua tri » chua trieu, chua tivi, huu tri
te sach » toc sach
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
xang ma » tang ma, nang ma, sang ma
chu tri » chu thi, chu tai, cu tri
ve cau » ke cau, va cau, ve cac
ma hoi » mai hoi, xa hoi, ma hoa

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 ty xang ma hoi. hieu ve cau truc ((ban hanh) or (ban thanh)) va ((chua tri) OR (chu tri))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty xang ma hoi. hieu ve cau truc ((ban hanh) OR (ban thanh)) va ((chua tri) OR (chu tri))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty xang ma hoi. hieu ve cau truc ((ban hanh) or (ban thanh)) va ((chua tri) OR (chu tri))*".