Perhaps you should try some spelling variations:
danh sai » dung sai, danh bat, danh dau
sach ky » sac ky, sach ty, sach kem
sai cua » dai cua, hai cua, lai cua
va danh » va dinh, va dan, va hanh
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
lang ha » long ha
lang xa » dang xay, lang van
ve cam » ve cham, ve cac, va cam
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: tu ((sach ky) OR (sach y)) ((lang xa) or (lang ha)) hoi. hieu ve cam xuc va danh sai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) ((lang xa) OR (lang ha)) hoi. hieu ve cam xuc va danh sai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sach y)) ((lang xa) or (lang ha)) hoi. hieu ve cam xuc va danh sai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sach y)) ((lang xa) or (lang ha)) hoi. hieu ve cam xuc va danh sai cua tre*.