Perhaps you should try some spelling variations:
thanh doi » thanh loi, thanh moi, thanh do
lang van » dang van, tang van, hoang van
va thanh » gia thanh, ban thanh, va tinh
nhan luc » nang luc
doi cua » dai cua, hoi cua
hieu ca » hieu cac, hieu cua, hieu va
su sach » so sach, vu sach
lang xa » lang ha, dang xay
te sach » toc sach
cua tre » cua te, cuu tre, cua triet
luc va » duc va, tuc va, loc va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (te sach)) ky ((lang xa) OR (lang van)) hoi. hieu ca nhan luc va thanh doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (te sach)) ky ((lang xa) OR (lang van)) hoi. hieu ca nhan luc va thanh doi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (te sach)) ky ((lang xa) OR (lang van)) hoi. hieu ca nhan luc va thanh doi cua tre*".