Perhaps you should try some spelling variations:
thieu nien » thien nhien
nien cac » vien cac, dien cac, bien cac
via cua » gia cua, gian cua, giau cua
ha tinh » va tinh
cac xuc » cam xuc, cac nuoc, chat xuc
su sach » so sach, vu sach
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
te sach » toc sach
cua tre » cua te, cuu tre, cua triet

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 (te sach)) ky dang xa hoi. thieu nien cac xuc ((ha tinh) or (may tinh)) via cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (te sach)) ky dang xa hoi. thieu nien cac xuc ((ha tinh) OR (may tinh)) via cua tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (te sach)) ky dang xa hoi. thieu nien cac xuc ((ha tinh) or (may tinh)) via cua tre*.