Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
hanh vai » hanh vi, hanh va, hanh tai
va hanh » van hanh, va thanh, va danh
ky lang » ky nang, ky dang, ky tang
lang ha » long ha
cuu tre » cua tre, cau tren, cau treo
hieu ve » hieu va, hieu van
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
cac le » cach le, cac he, mac le
ha hoi » hoa hoi, ha noi, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky lang ha hoi. hieu ve ((cac le) or (cac ky)) va hanh vai ((cuu tre) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky lang ha hoi. hieu ve ((cac le) OR (cac ky)) va hanh vai ((cuu tre) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: tu sai ky lang ha hoi. hieu ve ((cac le) or (cac ky)) va hanh vai ((cuu tre) or (va triet))*.