Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
hoc hanh » hoc nhanh, hoc thanh, hoc anh
va thanh » gia thanh, ban thanh, va tinh
hai cua » thai cua, dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet
van hoc » van hoa
ky lang » ky dang, ky tang, tay lang
va cao » va cac, va co, va dao
ve cao » ve bao, ve cac, ve co

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hanh ((ky lang) OR (ky nang)) van hoc. hieu ((ve cao) or (va cao)) duc va thanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hanh ((ky lang) OR (ky nang)) van hoc. hieu ((ve cao) OR (va cao)) duc va thanh hai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hanh ((ky lang) OR (ky nang)) van hoc. hieu ((ve cao) or (va cao)) duc va thanh hai cua tre".
• Adding a wildcard symbol may retrieve word variants: hoc hanh ((ky lang) OR (ky nang)) van hoc. hieu ((ve cao) or (va cao)) duc va thanh hai cua tre*.