Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh chi » danh cho, dinh chi, banh chi
su sach » so sach, vu sach
hieu va » lieu va
va danh » va dinh, va dan, va hanh
chi cua » chi cuc, khi cua, cuoi cua
y nang » ky nang, ly nang, v nang
me hoi » le hoi
cac tu » cac thu, cach tu, cac du

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 y nang ((me hoi) or (ma hoa)). ((hieu va) OR (hieu qua)) cac tu va danh chi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang ((me hoi) OR (ma hoa)). ((hieu va) OR (hieu qua)) cac tu va danh chi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang ((me hoi) or (ma hoa)). ((hieu va) OR (hieu qua)) cac tu va danh chi cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach y nang ((me hoi) or (ma hoa)). ((hieu va) OR (hieu qua)) cac tu va danh chi cua triet*.