Perhaps you should try some spelling variations:
thieu nang » thien nang, thieu khang, thieu quang
hanh dai » hanh tai, hanh dao, vanh dai
cham doc » cham soc, chat doc, chau doc
te sach » toc sach
cua tre » cua te, cua triet, dua tren
va hanh » van hanh, va thanh, va danh
hieu va » lieu va, hieu qua
hieu ve » hieu van
cuu tre » cau tren, cau treo
doc va » duoc va, hoc va, duc va
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach thieu nang x hoi. ((hieu ve) or (hieu va)) cham doc va hanh dai ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thieu nang x hoi. ((hieu ve) OR (hieu va)) cham doc va hanh dai ((cua tre) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach thieu nang x hoi. ((hieu ve) or (hieu va)) cham doc va hanh dai ((cua tre) OR (cuu tre))*".