Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
ky lang » ky nang, ky tang, tay lang
ky dang » ky nang, ky danh
ve cham » va cham, vu cham, ve chim
ve chat » va chat, van chat
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

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

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