Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hoc nganh » hoc nhanh
thuc day » thuc dan, thuc vat
thuc va » thuc vat, thuc dan
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
ve nham » ve nha, ve cham
vi cua » vai cua, di 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: ((su sach) or (hoc nganh)) ky nang x hoi. hieu ve nham ((thuc va) OR (thuc day)) hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (hoc nganh)) ky nang x hoi. hieu ve nham ((thuc va) OR (thuc day)) hanh vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (hoc nganh)) ky nang x hoi. hieu ve nham ((thuc va) OR (thuc day)) hanh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (hoc nganh)) ky nang x hoi. hieu ve nham ((thuc va) OR (thuc day)) hanh vi cua triet*.