Perhaps you should try some spelling variations:
chat huu » pham huu
su sach » so sach, vu 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
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
cua te » cua tu
cua cu » cua chu, cua cau, cua su

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang xa hoi. hieu va chat huu ((va danh) OR (va hanh)) vi ((cua te) or (cua cu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. hieu va chat huu ((va danh) OR (va hanh)) vi ((cua te) OR (cua cu))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. hieu va chat huu ((va danh) OR (va hanh)) vi ((cua te) or (cua cu))*".