Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cua triet » cua viet, su triet, va triet
nham thuc » nhan thuc, nam thuc, nham thu
hoc sach » hoc sinh, hoc cac
ty nang » ky nang, ty xang, ty hang
hoc anh » hoc nganh, hoc nhanh, ngoc anh
va nham » va cham, va tham, va nha
thuc va » thuc vat, thuc dan, thuc day
va dinh » van dinh, va kinh, va tinh
dinh va » dinh van, dinh ve, tinh va
va cua » va chua, via cua, ca 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: ((((hoc sach) OR (hoc anh))) or (thuat sach)) ty nang x hoi. lieu va nham thuc va dinh va cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((hoc sach) OR (hoc anh))) OR (thuat sach)) ty nang x hoi. lieu va nham thuc va dinh va cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((hoc sach) OR (hoc anh))) or (thuat sach)) ty nang x hoi. lieu va nham thuc va dinh va cua triet".
• Adding a wildcard symbol may retrieve word variants: ((((hoc sach) OR (hoc anh))) or (thuat sach)) ty nang x hoi. lieu va nham thuc va dinh va cua triet*.