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
sach thu » sach thue, sach thieu, sach tham
thu lang » thu hang, thu bang, phu lang
hieu van » hieu va, lieu va, hieu ve
duc manh » suc manh, duc anh, duc minh
tu sach » thu sach, su sach, te sach
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 thu lang xa hoi. ((hieu van) or (thien van)) nam duc manh thanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thu 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 thu lang xa hoi. ((hieu van) or (thien van)) nam duc manh thanh lai cua tre*.