Perhaps you should try some spelling variations:
danh doi » danh di, thanh doi, dung doi
cua tre » cua te, cuu tre, cua triet
doi cua » dai cua, hoi cua
va danh » va dinh, va dan, va hanh
cac tuc » cac toc, cac tu, cac tac
hieu ve » hieu va, hieu van
van hoe » van hoa, van hoc, van hieu
van hoi » van hoa, van hoc, van loi
sac ky » cac ky
ve cac » va cac, vien cac
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sac ky) or (sai ky)) dang ((van hoi) or (van hoe)). hieu ve cac tuc va danh doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sac ky) OR (sai ky)) dang ((van hoi) OR (van hoe)). hieu ve cac tuc va danh doi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sac ky) or (sai ky)) dang ((van hoi) or (van hoe)). hieu ve cac tuc va danh doi cua tre*.