Perhaps you should try some spelling variations:
thieu bien » thieu nien, tieu bieu, hien bien
cua triet » cua viet, su triet
thanh vai » thanh hai, thanh van, thanh tai
va triet » va thiet, va trien, ve triet
bien cac » vien cac, dien cac, bien ca
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
tuc va » thuc va, truc va, tuc xa
xuc va » duc va, luc va, xac 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 nang xa hoi. thieu bien cac ((xuc va) OR (tuc va)) thanh vai ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. thieu bien cac ((xuc va) OR (tuc va)) thanh vai ((cua triet) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. thieu bien cac ((xuc va) OR (tuc va)) thanh vai ((cua triet) or (va triet))".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. thieu bien cac ((xuc va) OR (tuc va)) thanh vai ((cua triet) or (va triet))*.