Perhaps you should try some spelling variations:
san hanh » san thanh, ban hanh, van hanh
cua tre » cua te, cuu tre, cua triet
ve cham » va cham, ve chat, vu cham
ky tang » ky nang, kho tang, ky trong
ky dang » ky nang, ky danh
van hoi » van hoa, van hoc, van hoe
cuu san » cuu van, cua san, cuu ban
vi cua » vai cua, di cua
tu dan » tuc dan, tu ban, cu dan
ve cam » ve cac, va cam, ve cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu dan ((ky tang) or (ky dang)) van hoi. hieu ((ve cam) or (ve cham)) cuu san hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu dan ((ky tang) OR (ky dang)) van hoi. hieu ((ve cam) OR (ve cham)) cuu san hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu dan ((ky tang) or (ky dang)) van hoi. hieu ((ve cam) or (ve cham)) cuu san hanh vi cua tre*.