Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh cat » hanh cac, hanh luat, nhanh cay
cat cua » chat cua, ca cua, mat cua
va cham » va chat, va tham
su sach » so sach, vu sach
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
hieu va » lieu va, hieu qua
ma hoi » mai hoi, xa hoi, ma hoa
loc va » hoc va, luc va

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) OR (ty hang)) ma hoi. hieu va cham ((duc va) or (loc va)) hanh cat cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ty nang) OR (ty hang)) ma hoi. hieu va cham ((duc va) OR (loc va)) hanh cat cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ty nang) OR (ty hang)) ma hoi. hieu va cham ((duc va) or (loc va)) hanh cat cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ((ty nang) OR (ty hang)) ma hoi. hieu va cham ((duc va) or (loc va)) hanh cat cua triet*.