Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van ban
su triet » su viet, su tien, ve triet
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » va thanh, va danh, ban hanh
van anh » van thanh, tuan anh, van minh
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
vai su » va su, van su, lai su

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

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