Perhaps you should try some spelling variations:
thien van » thi van
luat duoc » luat tuc
mai thanh » tai thanh, thi thanh, ban thanh
thanh cha » thanh ha, thanh nha, thanh phan
so sach » so sanh, bo sach, co sach
cao hoi » cau hoi, co hoi, cao hoc
da duoc » tao duoc, hoa duoc
cha cua » chat cua, cha chua, ca cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang

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 cao hoi. thien van ((luat duoc) or (da duoc)) mai thanh cha cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y nang cao hoi. thien van ((luat duoc) OR (da duoc)) mai thanh cha cua tre.
• Adding a wildcard symbol may retrieve word variants: so sach y nang cao hoi. thien van ((luat duoc) or (da duoc)) mai thanh cha cua tre*.