Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh vai » hanh va, hanh tai, hanh van
thuc day » thuc dan, thuc vat
nam thuc » nam thuoc, am thuc, nam thu
su sach » so sach, vu sach
vu nang » vuc nang, va nang, vu dang
hieu ve » hieu va, hieu van
ma hoi » mai hoi, xa hoi, ma hoa
ve nam » he nam, va nam, le nam
v nang » va nang, van nang, voi 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) or (vu nang)) ma hoi. hieu ve nam thuc day ((hanh vai) or (hanh vi)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((v nang) OR (vu nang)) ma hoi. hieu ve nam thuc day ((hanh vai) OR (hanh vi)) cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach ((v nang) or (vu nang)) ma hoi. hieu ve nam thuc day ((hanh vai) or (hanh vi)) cua triet*.