Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh chi » banh chi, danh chi, hanh che
chi cua » chi cuc, khi cua, cuoi cua
va hanh » van hanh, va thanh, va danh
cac tuc » cac toc, cac tu, cac tac
su sach » so sach, vu sach
hieu va » hieu qua
sach v » sach va, sach y, sach 2
tuc va » thuc va, truc va, tuc xa
me hoi » le hoi
v nang » va nang, vu nang, van nang

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