Perhaps you should try some spelling variations:
giai thanh » gia thanh, gian thanh, giay thanh
thuc giai » thuoc giao, hoc giai, thuc thai
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
nam thuc » nam thuoc, am thuc, nam thu
y nang » ky nang, ly nang, v nang
di cua » dai cua, doi cua, do cua
de cua » le cua, te cua, dieu cua
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y nang x hoi. hieu van nam thuc giai thanh ((di cua) OR (de cua)) triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang x hoi. hieu van nam thuc giai thanh ((di cua) OR (de cua)) triet".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang x hoi. hieu van nam thuc giai thanh ((di cua) OR (de cua)) triet*.