Perhaps you should try some spelling variations:
thieu nien » thien nhien
nien cam » nien giam, trien cam, vien cac
va thanh » gia thanh, ban thanh, va tinh
ve triet » su triet
va trien » va truyen, va thiet, va tuyen
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va danh, ban hanh

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