Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cham xuc » cam xuc, chat xuc, cham soc
ban hanh » ban hang
ban banh » ban anh, ban danh, ban thanh
hai cua » thai cua, dai cua, hoi cua
va cham » va chat, va tham
sach ty » sach y, sach tu, sach thu
hieu va » lieu va, hieu qua
nang ma » tang ma, sang ma, nang cao
cua te » cua tu

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

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