Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
cac xuc » cam xuc, cac nuoc, chat xuc
tu sach » thu sach, su sach, te sach
nang ma » tang ma, sang ma, nang cao
danh co » danh cho, doanh co, anh co
hieu ve » hieu va
va danh » va dinh, va dan, va hanh
tu sac » tu cac, tu san, tu bac
co cua » con cua, ca cua, cong cua
xuc va » duc va, tuc va, luc va
cua tu » cua tuc, cua su, cua cu
ma hoi » mai hoi, xa hoi, ma hoa

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

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