Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
ky sang » ky nang, ky dang, ky tang
sang ma » tang ma, nang ma, sang tao
qua cam » qua cham, qua cac, qua ca
xuc van » duc van, luc van, vuc van
duc ban » duc tan, duc van, dua ban
cuu tre » cua tre, cau treo
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky

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 sang ma hoa. hieu qua cam ((xuc van) or (duc ban)) hanh vi ((cuu tre) OR (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky sang ma hoa. hieu qua cam ((xuc van) OR (duc ban)) hanh vi ((cuu tre) OR (cau tren))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky sang ma hoa. hieu qua cam ((xuc van) or (duc ban)) hanh vi ((cuu tre) OR (cau tren))*".