Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
ban hanh » ban hang
ban danh » ban doanh, ban dan, van danh
cac xuc » cam xuc, cac nuoc, chat xuc
hai cua » thai cua, dai cua, hoi cua
hieu va » lieu va, hieu qua
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty ((nang xa) OR (nang cao)) hoi. hieu va cac xuc ((ban danh) OR (ban hanh)) hai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty ((nang xa) or (nang cao)) hoi. hieu va cac xuc ((ban danh) OR (ban hanh)) hai cua te~".
• Adding a wildcard symbol may retrieve word variants: thu sach ty ((nang xa) or (nang cao)) hoi. hieu va cac xuc ((ban danh) OR (ban hanh)) hai cua te*.