Perhaps you should try some spelling variations:
so sach » so sanh, bo sach, co sach
va hanh » van hanh, va thanh, va danh
xang xa » lang xa, mang xa, ang xa
hieu ve » hieu va, hieu van
cac xuc » cac nuoc, chat xuc, cac cuoc
sach ty » sach y, sach tu, sach thu
va dinh » van dinh, va kinh, va tinh
vi cua » vai cua, di cua
cua te » cua tu

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

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