Perhaps you should try some spelling variations:
thanh lam » thanh lap, hanh lam, thanh nam
thu sach » thuat sach, thuoc sach, thu hoach
va thanh » gia thanh, ban thanh, va tinh
su triet » su viet, su tien, ve triet
tu sach » su sach, te sach, tu cach
cau duc » cao duc, cau luc, chu duc
nang o » nang co, nang ho, nang ro
va cau » van cau, va cac, va dau
lam su » lai su, lam so, lam vu
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 (thu sach)) ky nang o hoi. lieu va cau duc va thanh lam su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky nang o hoi. lieu va cau duc va thanh lam su triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ky nang o hoi. lieu va cau duc va thanh lam su triet*.