Perhaps you should try some spelling variations:
lang thai » lang chai, dang thai, hoang thai
danh thai » dang thai, dinh thai, danh thanh
lang hai » lang chai, lang ha, hang hai
anh thai » anh thi, anh tai, nhanh thai
lieu van » lieu va, hieu van, sieu van
tu sach » thu sach, su sach, te sach
van cau » van dau, van hau, van chat
cua tre » cua te, cuu tre, cua triet
cau xuc » cam xuc, cau luc, cau truc
xuc va » duc va, tuc va, luc va

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 y ((lang hai) or (lang thai)) hai. lieu van cau xuc va ((danh thai) OR (anh thai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((lang hai) OR (lang thai)) hai. lieu van cau xuc va ((danh thai) OR (anh thai)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y ((lang hai) or (lang thai)) hai. lieu van cau xuc va ((danh thai) OR (anh thai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach y ((lang hai) or (lang thai)) hai. lieu van cau xuc va ((danh thai) OR (anh thai)) cua tre*.