Perhaps you should try some spelling variations:
manh thanh » danh thanh, minh thanh, manh thang
thien van » thi van
thanh lai » thanh hai, thanh lap, thanh loi
hieu van » hieu va, lieu va, hieu ve
duc manh » suc manh, duc anh, duc minh
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty lang » tay lang, ty xang, ty hang
lang xa » lang ha, dang xay, lang van
nam duc » nam duoc, pham duc, nam thuc
lai cua » dai cua, hai cua, lai chau
cua tre » cua te, cuu tre, cua triet

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 ty lang xa hoi. ((hieu van) OR (thien van)) nam duc manh thanh lai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty lang xa hoi. ((hieu van) OR (thien van)) nam duc manh thanh lai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ty lang xa hoi. ((hieu van) OR (thien van)) nam duc manh thanh lai cua tre*.