Perhaps you should try some spelling variations:
thieu nien » thien nhien
ban thanh » ban hanh, ban hang
nien cam » nien giam, trien cam, vien cac
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
va hanh » van hanh, va thanh, va danh
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 ky nang xa hoi. thieu nien cam xuc ((va hanh) or (ban thanh)) vi ve triet~.
• 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 (ban thanh)) vi ve triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. thieu nien cam xuc ((va hanh) or (ban thanh)) vi ve triet*.