Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
phan cua » nhan cua, than cua, phat cua
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, te sach, tu cach
cua tre » cua te, cuu tre, cua triet
vang xa » lang xa, mang xa, ang xa
ly vang » ly hang, ly van, ly quang
su sach » so sach, vu sach
va cao » va cac, va co, va dao
xuc va » duc va, tuc va, luc va
va cam » va cham, va cac, va cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) OR (su sach)) ly vang xa hoi. hieu ((va cam) or (va cao)) xuc va thanh phan cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ly vang xa hoi. hieu ((va cam) OR (va cao)) xuc va thanh phan cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) ly vang xa hoi. hieu ((va cam) or (va cao)) xuc va thanh phan cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) ly vang xa hoi. hieu ((va cam) or (va cao)) xuc va thanh phan cua tre*.