Perhaps you should try some spelling variations:
thieu nien » thien nhien
ve triet » va trien, su triet
va thanh » gia thanh, ban thanh, va tinh
nien cam » nien giam, trien cam, vien cac
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
va hanh » van hanh, va danh, ban hanh
su sach » so sach, vu sach
tu sach » thu sach, te sach, tu cach
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 dang xa hoi. thieu nien cam xuc ((va hanh) or (va thanh)) vi ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky dang xa hoi. thieu nien cam xuc ((va hanh) OR (va thanh)) vi ve triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) ky dang xa hoi. thieu nien cam xuc ((va hanh) or (va thanh)) vi ve triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) ky dang xa hoi. thieu nien cam xuc ((va hanh) or (va thanh)) vi ve triet*.