Perhaps you should try some spelling variations:
nhien cac » hien cac, thien cac, vien cac
cua triet » cua viet, su triet, va triet
hanh va » hang va, hanh vi
va hanh » van hanh, va thanh, va danh
cac xuc » cam xuc, cac nuoc, chat xuc
tu sach » thu sach, su sach, tu cach
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
te sach » toc sach
xuc va » duc va, tuc va, luc va
thiet » thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (te sach)) ty nang xa hoi. thien nhien cac xuc va hanh va ((cua triet) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ty nang xa hoi. thien nhien cac xuc va hanh va ((cua triet) OR (va thiet)).
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ty nang xa hoi. thien nhien cac xuc va hanh va ((cua triet) or (va thiet))*.