Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thieu tang » nhieu tang, thieu khang, thieu quang
luoc van » luoc can, luoc va, luc van
dinh doi » dinh moi, tinh doi, dinh toi
tang xa » trang xa, tang ma, lang xa
doi cua » dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet
lo van » le van, vo van, so van

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach thieu tang xa hoi. lieu va cac ((lo van) or (luoc van)) dinh doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach thieu tang xa hoi. lieu va cac ((lo van) OR (luoc van)) dinh doi cua tre.
• Adding a wildcard symbol may retrieve word variants: thuoc sach thieu tang xa hoi. lieu va cac ((lo van) or (luoc van)) dinh doi cua tre*.