Perhaps you should try some spelling variations:
thieu bien » thieu nien, tieu bieu, hien bien
bien tam » bien tram, bien tap, bien tiem
van hanh » van thanh, ban hanh, van ban
ve triet » va trien, su triet
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
tam xuc » cam xuc, tam thuc
van anh » van thanh, tuan anh, van minh

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