Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cham xuc » cam xuc, chat xuc, cham soc
dai huu » dao huu, dai hau, dai thua
dai cuu » dai cua
va hanh » van hanh, va thanh, va danh
sach ky » sac ky, sach y, sach ty
va cham » va chat, va tham
hieu va » lieu va, hieu qua
lang ha » long ha
lang xa » dang xay, lang van
xuc va » duc va, tuc va, luc va

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 ky ((lang xa) or (lang ha)) hoi. hieu va cham xuc va hanh ((dai cuu) OR (dai huu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky ((lang xa) OR (lang ha)) hoi. hieu va cham xuc va hanh ((dai cuu) OR (dai huu)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky ((lang xa) or (lang ha)) hoi. hieu va cham xuc va hanh ((dai cuu) OR (dai huu)) tre".
• Adding a wildcard symbol may retrieve word variants: thu sach ky ((lang xa) or (lang ha)) hoi. hieu va cham xuc va hanh ((dai cuu) OR (dai huu)) tre*.