Perhaps you should try some spelling variations:
van chat » cao chat
chat xuc » chat huu, cam xuc, chao xu
ban hanh » ban hang
hieu van » hieu va, thien van, lieu va
nang xa » nang x, lang xa, nang ma
xuc ban » duc ban, cuc ban, quoc ban
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
so sach » so sanh, bo sach, co sach
lam va » nam va, am va, cam va
dam va » dam van, nam va, dam ha
lam ha » nam ha, dam ha, lam chat

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 ty nang xa hoi. hieu van chat xuc ban hanh ((((lam va) OR (dam va))) or (lam ha)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty nang xa hoi. hieu van chat xuc ban hanh ((((lam va) OR (dam va))) OR (lam ha)) triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ty nang xa hoi. hieu van chat xuc ban hanh ((((lam va) OR (dam va))) or (lam ha)) triet*".