Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
thai cua » than cua, tai cuc, tri cua
ban hanh » ban hang
sach ky » sac ky, sach ty, sach kem
cac xuc » cac nuoc, chat xuc, cac cuoc
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
nang ho » nang hoc, nang co, tang ho
ho hai » hoc hai, pho hai, cho hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ky) OR (sach y)) nang ho hai. hieu ve ((cac xuc) or (cam xuc)) ban hanh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) nang ho hai. hieu ve ((cac xuc) OR (cam xuc)) ban hanh thai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sach y)) nang ho hai. hieu ve ((cac xuc) or (cam xuc)) ban hanh thai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sach y)) nang ho hai. hieu ve ((cac xuc) or (cam xuc)) ban hanh thai cua tre*.