Perhaps you should try some spelling variations:
thanh sinh » thanh binh, thanh tinh, thanh vinh
ban thanh » ban hanh, ban hang
nam quan » nam huan, nam qua, sam quan
quan ban » quang ban, qua ban, quan van
tu sach » thu sach, su sach, te sach
cua tre » cuu tre, cua triet, dua tren
y nang » ky nang, ly nang, v nang
nang o » nang co, nang ho, nang ro
va nam » van nam, ha nam, va nay
cua te » cua tu
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 ban thanh sinh ((cua tre) OR (cua te))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang o hoi. lieu va nam quan ban thanh sinh ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang o hoi. lieu va nam quan ban thanh sinh ((cua tre) OR (cua te))*.