Perhaps you should try some spelling variations:
thien van » thi van
thanh di » thanh doi, thanh de, thanh do
va thanh » gia thanh, ban thanh, va tinh
ban tuoc » ban thuoc, ban duoc, ban tuong
cuu tre » cau tren, cau treo
tuoc va » thuoc va, nuoc va, duoc va
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
so sanh » do sanh
cua tre » cua te, cua triet, dua tren
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: ((su sach) or (so sanh)) v nang xa hoi. thien van ban tuoc va thanh di ((cuu tre) OR (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sanh)) v nang xa hoi. thien van ban tuoc va thanh di ((cuu tre) OR (cua tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sanh)) v nang xa hoi. thien van ban tuoc va thanh di ((cuu tre) OR (cua tre))".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sanh)) v nang xa hoi. thien van ban tuoc va thanh di ((cuu tre) OR (cua tre))*.