Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
van dinh » van minh, van dich, va dinh
cuu tre » cua tre, cau treo
thu sac » thu sach, thu san, thu xac
hieu ve » hieu va, hieu van
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
vu dinh » quy dinh
sac ky » cac ky, sai ky
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: thu sac ky dang xa hoi. hieu ve cam xuc ((vu dinh) or (van dinh)) vai ((cuu tre) OR (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sac ky dang xa hoi. hieu ve cam xuc ((vu dinh) OR (van dinh)) vai ((cuu tre) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sac ky dang xa hoi. hieu ve cam xuc ((vu dinh) or (van dinh)) vai ((cuu tre) OR (cau tren))".
• Adding a wildcard symbol may retrieve word variants: thu sac ky dang xa hoi. hieu ve cam xuc ((vu dinh) or (van dinh)) vai ((cuu tre) OR (cau tren))*.