Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
cua tre » cuu tre, cua triet, dua tren
va chat » van chat, va phat, cao chat
va cham » va tham
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang
luc va » duc va, tuc va, loc va
cua te » cua tu

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 y nang xa hoi. hieu ((va cham) OR (va chat)) luc va thanh vai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. hieu ((va cham) OR (va chat)) luc va thanh vai ((cua tre) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. hieu ((va cham) OR (va chat)) luc va thanh vai ((cua tre) or (cua te))*".