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
hieu ve » hieu va, hieu van
vu sach » vu bach, su sach, vu khach
y nang » ky nang, ly nang, may nang
xuc va » duc va, tuc va, luc va
v nang » va nang, vu nang, van nang
ve cam » ve cham, ve cac, va cam
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 ((y nang) OR (v nang)) o hoi. 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 ((y nang) OR (v nang)) o hoi. 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 ((y nang) OR (v nang)) o hoi. hieu ve cam xuc va ((thanh lam) or (hanh lam)) cua triet".
• Adding a wildcard symbol may retrieve word variants: vu sach ((y nang) OR (v nang)) o hoi. hieu ve cam xuc va ((thanh lam) or (hanh lam)) cua triet*.