Perhaps you should try some spelling variations:
thanh dai » thanh tai, thanh dat, thanh oai
thanh hai » thanh phan, thanh hoa, thanh san
lang van » dang van, tang van, hoang van
cua tre » cua te, cuu tre, cua triet
luc van » luoc van, luu van, duc van
van dau » van dao, phan dau
van cam » van nam, van lam, van cau
van hoc » van hoa
ky lang » ky nang, ky dang, ky tang
can ky » van ky, dan ky, ban ky
tu can » tu ban, tu cac, thu canh

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

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