Perhaps you should try some spelling variations:
sang tao » hang tai
hanh vai » hanh vi, hanh va, hanh tai
cau tren » cu tren, ca tren, cau treo
dau tren » dau tien, dat tren, dau tieng
ky sang » ky nang, ky dang, ky tang
tao hoi » tao khoi, tao boi, tay hoi
hieu ve » hieu van
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky sang tao hoi. ((hieu ve) or (hieu va)) pham duc va hanh vai ((cau tren) OR (dau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky sang tao hoi. ((hieu ve) OR (hieu va)) pham duc va hanh vai ((cau tren) OR (dau tren))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky sang tao hoi. ((hieu ve) or (hieu va)) pham duc va hanh vai ((cau tren) OR (dau tren))*".