Perhaps you should try some spelling variations:
cuu tre » cua tre, cau tren, cau treo
ky dang » ky nang, ky danh
ky tang » ky nang, kho tang, ky trong
ve cham » va cham, vu cham, ve chim
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
ve chat » va chat, van chat
vi cuu » vi luu, vinh cuu
tu sac » tu sach, tu cac, tu san
soc va » hoc va, loc va, doc va

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

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