Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
ban hanh » ban hang
tham xuc » tham nuoc, tham thuc, pham duc
dau tren » dau tien, dat tren, dau tieng
hoang ha » hoang hai, hong ha, hoang nham
sach lo » sach dao, sach doi, sach hoi
va tham » van tham, va cham, va thanh
hai dau » han dau, hai dan, hai hau
hieu va » lieu va, hieu qua
hang x » nang x, hoang xa, chang xu

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 lo ((hang x) or (hoang ha)) hoi. hieu va tham xuc ((van minh) or (ban hanh)) hai dau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach lo ((hang x) OR (hoang ha)) hoi. hieu va tham xuc ((van minh) OR (ban hanh)) hai dau tren.
• Adding a wildcard symbol may retrieve word variants: thu sach lo ((hang x) or (hoang ha)) hoi. hieu va tham xuc ((van minh) or (ban hanh)) hai dau tren*.