Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
su triet » su viet, su tien
ve triet » va trien
hieu va » lieu va, hieu qua
va tham » van tham, va cham, va thanh
luu ban » luu bang, luu van, cuu ban
luu dan » luu van, luu hanh, luat dan
x hoi » xa hoi, o hoi, x ho

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 nang x hoi. hieu va tham ((luu ban) or (luu dan)) hanh vai ((su triet) OR (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang x hoi. hieu va tham ((luu ban) OR (luu dan)) hanh vai ((su triet) OR (ve triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky nang x hoi. hieu va tham ((luu ban) or (luu dan)) hanh vai ((su triet) OR (ve triet))".
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang x hoi. hieu va tham ((luu ban) or (luu dan)) hanh vai ((su triet) OR (ve triet))*.