Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
va triet » va thiet, ve triet, cua triet
va trien » va truyen, va thiet, va tuyen
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
tam luu » ta luu, tam buu
luu ban » luu bang, luu van, luu dan
hanh va » hang va, hanh vi
va tam » van tam, va tham, va tac

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