Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
thai cua » than cua, tai cuc, tri cua
sach ky » sac ky, sach ty, sach kem
nang xa » nang x, lang xa, nang ma
van bac » van bao, van hac, dan bac
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: so ((sach ky) OR (sach y)) nang xa hoi. hieu ((van bac) or (van ban)) xuc va hanh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sach ky) OR (sach y)) nang xa hoi. hieu ((van bac) OR (van ban)) xuc va hanh thai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sach ky) OR (sach y)) nang xa hoi. hieu ((van bac) or (van ban)) xuc va hanh thai cua tre*".