Perhaps you should try some spelling variations:
cau triet » cau trieu, su triet, cua triet
cuu thuc » cuu tac
dinh hai » dinh thai, tinh hai, dinh tai
hieu van » hieu va, thien van, lieu va
dinh ha » dinh hoa, dinh ba, tinh ha
thuc va » thuc vat, thuc dan, thuc day
su sach » vu sach
nang xa » nang x, lang xa, nang ma
so sach » so sanh, bo sach, co sach
van cuu » van cau, van chu, van cu
y nang » ky nang, ly nang, v nang

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 (so sach)) y nang xa hoi. hieu van cuu thuc va ((dinh hai) OR (dinh ha)) cau triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) y nang xa hoi. hieu van cuu thuc va ((dinh hai) OR (dinh ha)) cau triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sach)) y nang xa hoi. hieu van cuu thuc va ((dinh hai) OR (dinh ha)) cau triet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) y nang xa hoi. hieu van cuu thuc va ((dinh hai) OR (dinh ha)) cau triet*.