Perhaps you should try some spelling variations:
cua tre » cua te, cuu tre, cua triet
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
vu cham » va cham, vu kham, tu cham
ve chat » va chat, van chat
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
thu san » thuy san, thu ban, phu san
vi cua » vai cua, di cua
tu san » tu ban, tu can, vu san

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) OR (thu san)) ky lang xa hoi. hieu ((ve chat) or (vu cham)) hoc va danh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (thu san)) ky lang xa hoi. hieu ((ve chat) OR (vu cham)) hoc va danh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu san) OR (thu san)) ky lang xa hoi. hieu ((ve chat) or (vu cham)) hoc va danh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu san) OR (thu san)) ky lang xa hoi. hieu ((ve chat) or (vu cham)) hoc va danh vi cua tre*.