Perhaps you should try some spelling variations:
chat thuc » thuat thuc, nhan thuc, chat thai
hieu van » hieu va, thien van, lieu va
hanh tai » thanh tai, hang tai, han tai
van chat » cao chat
thuc va » thuc vat, thuc dan, thuc day
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
sac ky » cac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((sach y) or (((sac ky) OR (sai ky)))) nang xa hoi. hieu van chat thuc va hanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach y) OR (((sac ky) OR (sai ky)))) nang xa hoi. hieu van chat thuc va hanh tai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach y) or (((sac ky) OR (sai ky)))) nang xa hoi. hieu van chat thuc va hanh tai cua tre".
• Adding a wildcard symbol may retrieve word variants: thu ((sach y) or (((sac ky) OR (sai ky)))) nang xa hoi. hieu van chat thuc va hanh tai cua tre*.