Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh nam » hanh nam, thanh tam, thanh pham
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
hieu va » lieu va, hieu qua
cau duc » cao duc, cau luc, chu duc
so lai » so loai, so lam, so lao
va cau » van cau, va cac, va dau
o lai » o lao

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 ty nang ((o lai) or (so lai)). hieu va cau duc va thanh nam cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang ((o lai) OR (so lai)). hieu va cau duc va thanh nam cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang ((o lai) or (so lai)). hieu va cau duc va thanh nam cua triet*.