Perhaps you should try some spelling variations:
sang mai » sang ma, lang mai, hoang mai
danh lai » danh sai, gianh lai, dinh lam
sang tai » hang tai, sang tao, tang tai
cua tre » cua te, cuu tre, cua triet
lai cua » dai cua, hai cua, lai chau
hieu va » lieu va, hieu qua
cao duc » dao duc, cao suc, giao duc
va danh » va dinh, va dan, va hanh
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ve cac ky ((sang mai) or (sang tai)) hoi. hieu va ((cao duc) or (cam xuc)) va danh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ve cac ky ((sang mai) OR (sang tai)) hoi. hieu va ((cao duc) OR (cam xuc)) va danh lai cua tre.
• Adding a wildcard symbol may retrieve word variants: ve cac ky ((sang mai) or (sang tai)) hoi. hieu va ((cao duc) or (cam xuc)) va danh lai cua tre*.