Perhaps you should try some spelling variations:
thien van » thi van
duoc hoi » quoc hoi, duoc hoc, duoc si
hanh hai » thanh hai, nhanh hai, hang hai
chat xuc » chat huu, cam xuc, chao xu
van chat » cao chat
hai chu » hai chau, hoi chu, hai chi
va hanh » van hanh, va thanh, va danh
doc hoi » hoc hoi, doc hai, doi hoi
sach va » sach xa, sach ha, sach dao
chu tre » cho tre, chu tri, cuu tre
sach v » sach y, sach 2, sach vay
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: so ((sach v) or (sach va)) nang ((doc hoi) OR (duoc hoi)). thien van chat xuc va hanh hai chu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sach v) OR (sach va)) nang ((doc hoi) OR (duoc hoi)). thien van chat xuc va hanh hai chu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sach v) or (sach va)) nang ((doc hoi) OR (duoc hoi)). thien van chat xuc va hanh hai chu tre*".