Perhaps you should try some spelling variations:
nang duoc » ngang duoc, nang doc, nganh duoc
thien van » thi van
duoc hoi » quoc hoi, duoc hoc, duoc si
hanh hai » thanh hai, nhanh hai, hang hai
so sach » so sanh, bo sach, co sach
chu tre » cho tre, cuu tre, cau tren
chu tri » chua tri, chu thi, chu tai
van hac » van hoc, van ha, van hai
sach v » sach va, sach y, sach 2
tuc va » thuc va, truc va, tuc xa
xuc va » duc va, luc va, xac va
v nang » va nang, vu nang, van nang

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