Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
chat xuc » chat huu, cam xuc, chao xu
van chat » cao chat
dinh ve » dinh ket
sach ty » sach y, sach tu, sach thu
tu sach » thu sach, su sach, te sach
mai hoi » mai khoi, dai hoi, lai hoi
ty nang » ky nang, ty xang, ty hang
luy tre » luyen tre
xuc va » duc va, tuc va, luc va
ma hoi » xa hoi, ma hoa, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty nang ((ma hoi) or (mai hoi)). hieu van chat xuc va ((dinh ve) OR (dinh van)) luy tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang ((ma hoi) OR (mai hoi)). hieu van chat xuc va ((dinh ve) OR (dinh van)) luy tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang ((ma hoi) or (mai hoi)). hieu van chat xuc va ((dinh ve) OR (dinh van)) luy tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang ((ma hoi) or (mai hoi)). hieu van chat xuc va ((dinh ve) OR (dinh van)) luy tre*.