Perhaps you should try some spelling variations:
thanh lam » thanh lap, hanh lam, thanh nam
ve triet » va trien, su triet
hieu van » hieu va, thien van, lieu va
xa thanh » va thanh, ha thanh, ta thanh
cam tuc » cam tu, nam thuc, dam thuc
sach ky » sac ky, sach y, sach ty
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va
lam ve » la ve, lam vu, nam ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky nang xa hoi. ((hieu ve) OR (hieu van)) ((cam tuc) or (cam xuc)) xa thanh lam ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang xa hoi. ((hieu ve) OR (hieu van)) ((cam tuc) OR (cam xuc)) xa thanh lam ve triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky nang xa hoi. ((hieu ve) OR (hieu van)) ((cam tuc) or (cam xuc)) xa thanh lam ve triet".
• Adding a wildcard symbol may retrieve word variants: so sach ky nang xa hoi. ((hieu ve) OR (hieu van)) ((cam tuc) or (cam xuc)) xa thanh lam ve triet*.