Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
ban hanh » ban hang
hanh vai » hanh vi, hanh va, hanh tai
pham cuc » pham chuc, pham duc, pham cua
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
cuu tre » cua tre, cau treo
su sach » so sach, vu sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky dang xa hoi. hieu ve ((cam xuc) or (pham cuc)) ban hanh vai ((cuu tre) OR (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky dang xa hoi. hieu ve ((cam xuc) OR (pham cuc)) ban hanh vai ((cuu tre) OR (cau tren))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky dang xa hoi. hieu ve ((cam xuc) or (pham cuc)) ban hanh vai ((cuu tre) OR (cau tren))*".