Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
tan hanh » tan thanh, tang hanh, toan hanh
thai cua » than cua, tai cuc, tri cua
dang va » dang van, dang vat, hang va
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
cua tre » cua te, cuu tre, cua triet
su sai » su tai, su hai, su dai
sai ky » sac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sai ky ((dang va) or (lang xa)) hoi. hieu ve pham duc tan hanh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sai ky ((dang va) OR (lang xa)) hoi. hieu ve pham duc tan hanh thai cua tre.
• Adding a wildcard symbol may retrieve word variants: su sai ky ((dang va) or (lang xa)) hoi. hieu ve pham duc tan hanh thai cua tre*.