Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh lam » thanh lap, thanh nam, thanh tam
hanh lam » thanh lap, hanh kem, hanh va
sach ky » sac ky, sach ty, sach kem
hieu ve » hieu va, hieu van
xuc va » duc va, tuc va, luc va
nang o » nang co, nang ho, nang ro
ve cam » ve cham, ve cac, va cam
o hoc » co hoc, mo hoc, so hoc

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 y)) nang o hoc. hieu ve cam xuc va ((thanh lam) or (hanh lam)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sach ky) OR (sach y)) nang o hoc. hieu ve cam xuc va ((thanh lam) OR (hanh lam)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((sach ky) OR (sach y)) nang o hoc. hieu ve cam xuc va ((thanh lam) or (hanh lam)) cua triet".
• Adding a wildcard symbol may retrieve word variants: vu ((sach ky) OR (sach y)) nang o hoc. hieu ve cam xuc va ((thanh lam) or (hanh lam)) cua triet*.