Perhaps you should try some spelling variations:
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
va dinh » van dinh, va kinh, va tinh
doi cua » hoi cua
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va
di cua » de cua, do cua, da cua

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 y nang xa hoi. hieu va cac xuc va dinh ((di cua) or (((doi cua) OR (dai cua)))) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y nang xa hoi. hieu va cac xuc va dinh ((di cua) OR (((doi cua) OR (dai cua)))) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach y nang xa hoi. hieu va cac xuc va dinh ((di cua) or (((doi cua) OR (dai cua)))) te".
• Adding a wildcard symbol may retrieve word variants: so sach y nang xa hoi. hieu va cac xuc va dinh ((di cua) or (((doi cua) OR (dai cua)))) te*.