Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh lam » thanh lap, hanh kem, hanh va
chat xuc » chat huu, cam xuc, chao xu
va hanh » van hanh, va thanh, va danh
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
xuc va » duc va, tuc va, luc va
lam va » nam va, dam va, lam ha

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 ty nang xa hoi. ((hieu ve) or (hieu van)) chat xuc va hanh lam va (thiet OR thieu)~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang xa hoi. ((hieu ve) OR (hieu van)) chat xuc va hanh lam va (thiet OR thieu).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang xa hoi. ((hieu ve) or (hieu van)) chat xuc va hanh lam va (thiet OR thieu)".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang xa hoi. ((hieu ve) or (hieu van)) chat xuc va hanh lam va (thiet OR thieu)*.