Perhaps you should try some spelling variations:
ve triet » va trien, su triet
van hanh » van thanh, ban hanh, van anh
va hanh » va thanh, va danh, ban hanh
cac xuc » cam xuc, cac nuoc, chat xuc
tu sach » thu sach, te sach, tu cach
nang ma » tang ma, sang ma, nang cao
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
ma hoi » mai hoi, xa hoi, ma hoa
ve cac » va cac, vien cac
vi ve » va ve, gi ve, ve ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) OR (su sach)) ky nang ma hoi. hieu ve cac xuc ((va hanh) OR (van hanh)) vi ve triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) ky nang ma hoi. hieu ve cac xuc ((va hanh) OR (van hanh)) vi ve triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) ky nang ma hoi. hieu ve cac xuc ((va hanh) OR (van hanh)) vi ve triet*.