Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
toc sach » hoc sach, doc sach, thuoc sach
cau xuc » cam xuc, cau luc, chat xuc
sach ky » sac ky, sach y, sach ty
tang ma » mang may, tang van
ky tang » ky nang, ky dang, kho tang
lap cua » lai cua, tap cua, ap cua
lam cua » nam cua, lam chat
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: toc sach ky tang ma hoi. hieu van ((cau xuc) OR (cau truc)) va thanh ((lap cua) or (lam cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky tang ma hoi. hieu van ((cau xuc) OR (cau truc)) va thanh ((lap cua) OR (lam cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky tang ma hoi. hieu van ((cau xuc) OR (cau truc)) va thanh ((lap cua) or (lam cua)) triet".
• Adding a wildcard symbol may retrieve word variants: toc sach ky tang ma hoi. hieu van ((cau xuc) OR (cau truc)) va thanh ((lap cua) or (lam cua)) triet*.