Perhaps you should try some spelling variations:
cua tre » cua te, cuu tre, cua triet
cuu san » cuu van, cua san, cuu nang
ky lang » ky nang, ky dang, tay lang
ky tang » ky nang, ky dang, kho tang
van hoi » van hoa, van hoc, van hoe
hieu ve » hieu va, hieu van
danh vi » hanh vi, dinh vi, danh di
cuu ban » cuu van, cua ban, cuu nang
vi cua » vai cua, di cua
tu san » thu san, tu ban, tu can
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ((ky lang) or (ky tang)) van hoi. hieu ve cam ((cuu ban) OR (cuu san)) danh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ((ky lang) OR (ky tang)) van hoi. hieu ve cam ((cuu ban) OR (cuu san)) danh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ((ky lang) or (ky tang)) van hoi. hieu ve cam ((cuu ban) OR (cuu san)) danh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: tu san ((ky lang) or (ky tang)) van hoi. hieu ve cam ((cuu ban) OR (cuu san)) danh vi cua tre*.