Perhaps you should try some spelling variations:
sach kem » hanh kem
sach ky » sac ky, sach ty, sach hay
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
vi su » va su, ve su, ki su
kien » bien, vien, tien

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 kem))) or (sach y)) lang xa hoi. hieu ve cam xuc va hanh vi su kien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((((sach ky) OR (sach kem))) OR (sach y)) lang xa hoi. hieu ve cam xuc va hanh vi su kien.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((((sach ky) OR (sach kem))) or (sach y)) lang xa hoi. hieu ve cam xuc va hanh vi su kien".
• Adding a wildcard symbol may retrieve word variants: te ((((sach ky) OR (sach kem))) or (sach y)) lang xa hoi. hieu ve cam xuc va hanh vi su kien*.