Perhaps you should try some spelling variations:
thien van » thi van
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
van cau » van dau, van hau, van chat
cau duc » cao duc, cau luc, chu duc
ba benh » va benh, bo benh, bach benh
vai cua » dai cua, hai cua, lai cua
y nang » ky nang, ly nang, v nang
duc ba » duc ban, duc bao, duc va
di cua » dai cua, doi cua, de cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y nang xa hoi. thien van cau duc ba benh ((((vi cua) OR (vai cua))) OR (di cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach y nang xa hoi. thien van cau duc ba benh ((((vi cua) OR (vai cua))) or (di cua)) tre~".
• Adding a wildcard symbol may retrieve word variants: so sach y nang xa hoi. thien van cau duc ba benh ((((vi cua) OR (vai cua))) or (di cua)) tre*.