Perhaps you should try some spelling variations:
thien van » thi van
thu sach » tu sach, thuat sach, thuoc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
va sinh » va kinh, vi sinh, hoa sinh
va tinh » may tinh
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: thu sach ky nang xa hoi. thien van cam xuc ((va sinh) OR (va tinh)) dai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky nang xa hoi. thien van cam xuc ((va sinh) OR (va tinh)) dai cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang xa hoi. thien van cam xuc ((va sinh) OR (va tinh)) dai cua tre*.