Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dong tien » duong tien, dong tin, dong dien
lam xuc » cam xuc, lam duoc
xuc van » duc van, luc van, vuc van
tu sach » thu sach, su sach, te sach
ty nang » ky nang, ty xang, ty hang
so sach » so sanh, bo sach, co sach
va lam » van lam, va lap
nang o » nang co, nang ho, nang ro
cua su » qua su
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: ((tu sach) or (so sach)) ty nang o hoi. lieu va lam xuc van dong tien ((cua triet) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (so sach)) ty nang o hoi. lieu va lam xuc van dong tien ((cua triet) OR (cua su)).
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (so sach)) ty nang o hoi. lieu va lam xuc van dong tien ((cua triet) or (cua su))*.