Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
cac tuc » cac toc, cac tu, cac tac
dan thi » dang thi, tran thi, dinh thi
thi cua » thai cua, thi cuc, tri cua
y nang » ky nang, ly nang, v nang
me hoi » le hoi
tuc va » thuc va, truc va, tuc xa
va dan » ca dan, va dao, va dau

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 cac tuc va dan thi 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 cac tuc va dan thi cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach y nang ((me hoi) or (ma hoa)). hieu va cac tuc va dan thi cua triet*.