Perhaps you should try some spelling variations:
nhanh hai » nhanh thai, thanh hai, nhanh ha
hanh hai » thanh hai, hang hai, hanh tai
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
van hac » van hoc, van ha, van hai
van cac » van cau, van bac, dan cac
nang xa » nang x, lang xa, nang ma
cuu tre » cua tre, cau tren, cau treo
xuc va » duc va, tuc va, luc va

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. hieu ((van cac) OR (van hac)) xuc va ((hanh hai) OR (nhanh hai)) cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky nang xa hoi. hieu ((van cac) OR (van hac)) xuc va ((hanh hai) OR (nhanh hai)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: so sach ky nang xa hoi. hieu ((van cac) OR (van hac)) xuc va ((hanh hai) OR (nhanh hai)) cuu tre*.