Perhaps you should try some spelling variations:
thieu nien » thien nhien
nien chat » nhan chat, nien cua
nang tai » hang tai, tang tai, sang tai
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
sach ky » sac ky, sach y, sach ty
so viet » hoc viet
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa

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