Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
thai cuu » thai cua, tai cuc, thi cuc
cuu tre » cua tre, cau tren, cau treo
va hanh » van hanh, va thanh, va danh
cao duc » dao duc, cao suc, giao duc
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
va cao » va cac, va co, va dao
su tai » su thi, tu tai
su sai » su hai, su dai, su mai

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) OR (su tai)) ky ((nang xa) or (lang xa)) hoi. hieu va cao duc va hanh thai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sai) OR (su tai)) ky ((nang xa) OR (lang xa)) hoi. hieu va cao duc va hanh thai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sai) OR (su tai)) ky ((nang xa) or (lang xa)) hoi. hieu va cao duc va hanh thai cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((su sai) OR (su tai)) ky ((nang xa) or (lang xa)) hoi. hieu va cao duc va hanh thai cuu tre*.