Perhaps you should try some spelling variations:
thieu nien » thien nhien
hanh tai » thanh tai, hang tai, han tai
ve triet » va trien, su triet
tu sach » thu sach, su sach, te sach
ky lang » ky dang, ky tang, tay lang
nien ca » nien cua, bien ca, dien ca
va hanh » van hanh, va thanh, va danh
ca xuc » cam xuc, chat xuc
xuc va » duc va, tuc va, luc va

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