Perhaps you should try some spelling variations:
thanh sinh » thanh binh, thanh tinh, thanh vinh
nam quan » nam huan, nam qua, tam quan
sam quan » san quan, sau quan, tam quan
va thanh » gia thanh, ban thanh, va tinh
sinh cua » manh cua, dinh cuu, sinh va
tu sach » thu sach, su sach, te sach
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
nang o » nang co, nang ho, nang ro
o hoi » co hoi, o hoc, o hai

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 y nang o hoi. lieu va ((nam quan) OR (sam quan)) va thanh sinh cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang o hoi. lieu va ((nam quan) OR (sam quan)) va thanh sinh cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang o hoi. lieu va ((nam quan) OR (sam quan)) va thanh sinh cua tre*.