Perhaps you should try some spelling variations:
thien van » thi van
thu sach » tu sach, thuat sach, thuoc sach
thanh do » thanh de, thanh pho, thanh hoa
thi nang » thi cong, ki nang, thi hanh
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
do cua » doi cua, co cua, de cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y nang xa hoi. ((thien van) or (thi nang)) lam ((xuc va) OR (tuc va)) thanh do cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang xa hoi. ((thien van) OR (thi nang)) lam ((xuc va) OR (tuc va)) thanh do cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang xa hoi. ((thien van) or (thi nang)) lam ((xuc va) OR (tuc va)) thanh do cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang xa hoi. ((thien van) or (thi nang)) lam ((xuc va) OR (tuc va)) thanh do cua tre*.