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, hieu qua
cac tuc » cac toc, cac tu, cac tac
va danh » va dinh, va dan, va hanh
chi cua » chi cuc, khi cua, cuoi cua
y nang » ly nang, v nang, may nang
me hoi » le hoi
tuc va » thuc va, truc va, tuc xa

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