Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
cach tu » cach thuc
tai cua » thai cua, tai cuc, tri cua
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
ve cac » va cac, vien cac
sac ky » cac ky, sai ky
ve cao » va cao, ve bao, ve co
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((cach tu) or (sac ky)) nang x hoi. hieu ((ve cao) or (ve cac)) duc va hanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((cach tu) OR (sac ky)) nang x hoi. hieu ((ve cao) OR (ve cac)) duc va hanh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: thu ((cach tu) or (sac ky)) nang x hoi. hieu ((ve cao) or (ve cac)) duc va hanh tai cua tre*.