Perhaps you should try some spelling variations:
cay phoi » cap phoi, tay hoi, cay cho
cua tre » cua te, cua triet, dua tren
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
cac luc » cau luc, coc luc, cac nuoc
sang ly » hang ly, bang ly, dang ly
cuu tre » cau tren, cau treo
hieu ve » hieu va, hieu van
dang ky » dang y, dan ky, dong ky
va cay » va cac, va cao, va cai
luc va » duc va, tuc va, loc va
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: thu ((sang ly) or (dang ky)) va cay phoi. hieu ve cac luc va danh vi ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sang ly) OR (dang ky)) va cay phoi. hieu ve cac luc va danh vi ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: thu ((sang ly) or (dang ky)) va cay phoi. hieu ve cac luc va danh vi ((cua tre) or (cuu tre))*.