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
sach thu » sach thue, sach thieu, sach tham
nang xa » nang x, lang xa, nang ma
sach ty » sach y, sach tu, xach tay
va hanh » van hanh, va danh, ban hanh
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 ty) OR (sach thu)) nang 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 ty) OR (sach thu)) nang 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 ty) OR (sach thu)) nang xa hoi. thieu nien cam xuc ((va hanh) or (va thanh)) vi ve triet".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) OR (sach thu)) nang xa hoi. thieu nien cam xuc ((va hanh) or (va thanh)) vi ve triet*.