Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
trong ca » trong cac, trong nha
ve triet » va trien, su triet
hieu ve » hieu va, hieu van
ve nham » ve nha, ve cham
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
danh ve » dinh ve, hanh ve, anh ve
tai ky » thai ky, trai ky, dai ky
sai ky » sac ky
ca hoi » cau hoi, cua hoi, xa hoi
ve ve » de ve, va ve, ke ve

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te ((tai ky) or (sai ky)) trong ca hoi. hieu ve nham thuc va danh ve ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((tai ky) OR (sai ky)) trong ca hoi. hieu ve nham thuc va danh ve ve triet.
• Adding a wildcard symbol may retrieve word variants: te ((tai ky) or (sai ky)) trong ca hoi. hieu ve nham thuc va danh ve ve triet*.