Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
chat chuc » chuan chuc, chat huu, chat cua
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va chat » van chat, va phat, cao chat
do danh » do sanh, dia danh, hop danh
cuu tre » cua tre, cau tren, cau treo

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. hieu va chat chuc ((do danh) OR (do dinh)) dai ((cua triet) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. hieu va chat chuc ((do danh) OR (do dinh)) dai ((cua triet) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. hieu va chat chuc ((do danh) OR (do dinh)) dai ((cua triet) or (cuu tre))*".