Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cham duc » pham duc, cham soc, pham duy
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
va cham » va chat, va tham
hanh de » hanh kem
hanh ve » hanh vi, hanh va, hanh kem

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 x ho. lieu va cham duc va ((hanh de) or (hanh ve)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang x ho. lieu va cham duc va ((hanh de) OR (hanh ve)) cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang x ho. lieu va cham duc va ((hanh de) or (hanh ve)) cua triet*.