Perhaps you should try some spelling variations:
tham luu » tam luu, thanh luu, cham cuu
ban hanh » ban hang
hanh van » thanh van, khanh van, hanh va
su triet » su tien, ve triet
hieu va » lieu va, hieu qua
va tham » van tham, va cham, va thanh
luu ban » luu bang, luu van, luu dan
su viet » so viet
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 hanh van ((su triet) OR (su viet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky nang x hoi. hieu va tham luu ban hanh van ((su triet) OR (su viet))".
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang x hoi. hieu va tham luu ban hanh van ((su triet) OR (su viet))*.