Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
va hanh » van hanh, va thanh, va danh
cam luc » cam xuc, cau luc
hieu va » lieu va, hieu qua
su sach » so sach, vu sach
hieu ve » hieu van
nang xa » nang x, lang xa, nang ma
luc va » duc va, tuc va, loc va
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: ((su sach) OR (thu sach)) ky nang xa hoi. ((hieu ve) OR (hieu va)) cam luc va hanh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (thu sach)) ky nang xa hoi. ((hieu ve) OR (hieu va)) cam luc va hanh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (thu sach)) ky nang xa hoi. ((hieu ve) OR (hieu va)) cam luc va hanh vi cua triet*.