Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vi » hanh vi, thanh va, thanh ve
tu sach » thu sach, su sach, te sach
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
xuc ban » duc ban, cuc ban, quoc ban
va cam » va cham, va cac, va cao
vi luu » vi lua

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 xa) or (nang x)) hoi. hieu va cam xuc ban thanh vi luu (tru OR truc)~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((lang xa) OR (nang x)) hoi. hieu va cam xuc ban thanh vi luu (tru OR truc).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y ((lang xa) or (nang x)) hoi. hieu va cam xuc ban thanh vi luu (tru OR truc)".
• Adding a wildcard symbol may retrieve word variants: tu sach y ((lang xa) or (nang x)) hoi. hieu va cam xuc ban thanh vi luu (tru OR truc)*.