Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
cau tren » cu tren, dau tren, ca tren
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ro hoi » co hoi, o hoi, mo hoi
co loi » co hoi
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc 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 nang ((ro hoi) or (co loi)). hieu va cam xuc va hanh vi ((cua viet) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ((ro hoi) OR (co loi)). hieu va cam xuc va hanh vi ((cua viet) OR (cau tren)).
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ((ro hoi) or (co loi)). hieu va cam xuc va hanh vi ((cua viet) or (cau tren))*.