Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh lai » hanh lam, hanh tai, thanh lap
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
duc van » duc tan, duc manh, duc phan
lai cua » dai cua, hai cua, lai chau

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty nang x ho. hieu ve cham ((duc van) OR (duc va)) hanh lai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang x ho. hieu ve cham ((duc van) OR (duc va)) hanh lai cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang x ho. hieu ve cham ((duc van) OR (duc va)) hanh lai cua triet*.