Perhaps you should try some spelling variations:
thien van » thi van
hanh hai » thanh hai, nhanh hai, hang hai
nang doc » nang luc
hac xuc » chat xuc
chu tre » cho tre, cuu tre, cau tren
va hanh » van hanh, va thanh, va danh
van hac » van hoc, van ha, van hai
chu tri » chua tri, chu thi, chu tai
doc hoi » duoc hoi, hoc hoi, doc hai
sach v » sach va, 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.

• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sach v) OR (sach y)) nang doc hoi. thien van hac xuc va hanh hai ((chu tre) OR (chu tri))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sach v) OR (sach y)) nang doc hoi. thien van hac xuc va hanh hai ((chu tre) or (chu tri))~".
• Adding a wildcard symbol may retrieve word variants: so ((sach v) OR (sach y)) nang doc hoi. thien van hac xuc va hanh hai ((chu tre) or (chu tri))*.