Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach ky » sac ky, sach y, sach ty
va tinh » may tinh
va hanh » van hanh, va thanh, va danh
te sach » toc sach
hieu ve » hieu van
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang xa hoi. ((hieu ve) OR (hieu va)) cam xuc ((va hanh) OR (va tinh)) vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang xa hoi. ((hieu ve) OR (hieu va)) cam xuc ((va hanh) OR (va tinh)) vi cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. ((hieu ve) OR (hieu va)) cam xuc ((va hanh) OR (va tinh)) vi cua triet*.