Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
cua triet » cua viet, su triet, va triet
sach ty » sach tu, sach thu, xach tay
cac suc » cao suc, cac nuoc, cac cuoc
nang o » nang co, nang ho, nang ro
vi cua » vai cua, di cua
o hoi » co hoi, o hoc, o hai

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 ty) OR (sach y)) nang o hoi. lieu va cac suc manh hanh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach ty) OR (sach y)) nang o hoi. lieu va cac suc manh hanh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: thu ((sach ty) OR (sach y)) nang o hoi. lieu va cac suc manh hanh vi cua triet*.