Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
su sach » vu sach
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
thuc va » thuc vat, thuc dan, thuc day
hanh ca » hanh cac, hanh cat, hanh cua
y nang » ky nang, ly nang, v nang
ca cua » co cua

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