Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh lam » thanh lap, hanh lam, thanh nam
ban thanh » ban hanh, ban hang
lam cua » nam cua, lam chat
xuc ban » duc ban, cuc ban, quoc ban
sach ky » sac ky, sach y, sach kem
sach ty » sach y, sach tu, sach thu
nang o » nang co, nang ho, nang ro
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao
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: vu ((sach ky) OR (sach ty)) nang o hoi. hieu ((ve cam) or (va cam)) xuc ban thanh lam cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sach ky) OR (sach ty)) nang o hoi. hieu ((ve cam) OR (va cam)) xuc ban thanh lam cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((sach ky) OR (sach ty)) nang o hoi. hieu ((ve cam) or (va cam)) xuc ban thanh lam cua triet".
• Adding a wildcard symbol may retrieve word variants: vu ((sach ky) OR (sach ty)) nang o hoi. hieu ((ve cam) or (va cam)) xuc ban thanh lam cua triet*.