Perhaps you should try some spelling variations:
sach ky » sac ky, sach ty, sach kem
lai cua » dai cua, hai cua, lai chau
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
sang xa » song xa, lang xa, sang ma
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach ky) OR (sach y)) sang xa hoi. hieu ve cam xuc ((va danh) or (va hanh)) lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sach y)) sang xa hoi. hieu ve cam xuc ((va danh) OR (va hanh)) lai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) OR (sach y)) sang xa hoi. hieu ve cam xuc ((va danh) or (va hanh)) lai cua tre".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) OR (sach y)) sang xa hoi. hieu ve cam xuc ((va danh) or (va hanh)) lai cua tre*.