Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thien van » thi van
hanh tai » thanh tai, hang tai, hinh tai
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van cau » van dau, van hau, van chat
cau tuc » cau truc, cau tu, cau luc
han tai » hang tai, nhan tai, van tai
cua tre » cua te, cuu tre, cua triet
tuc va » thuc va, truc va, tuc xa

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

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