Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
danh sai » dung sai, danh bat, danh dau
danh va » doanh va, hanh va, anh va
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
xuc va » duc va, tuc va, luc va
y nang » ky nang, ly nang, v nang
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) OR (toc sach)) y nang xa hoi. hieu ve cam xuc va ((danh va) or (danh sai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) y nang xa hoi. hieu ve cam xuc va ((danh va) OR (danh sai)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) y nang xa hoi. hieu ve cam xuc va ((danh va) or (danh sai)) cua tre*".