Perhaps you should try some spelling variations:
thien van » thi van
hanh thai » nhanh thai, hinh thai, anh thai
hanh tai » thanh tai, hang tai, han tai
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van bac » van ban, van bao, van hac
xuc van » duc van, luc van, xuc ban
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: so sach ky nang xa hoi. thien van bac xuc van ((hanh thai) OR (hanh tai)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky nang xa hoi. thien van bac xuc van ((hanh thai) OR (hanh tai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: so sach ky nang xa hoi. thien van bac xuc van ((hanh thai) OR (hanh tai)) cua tre*.