Perhaps you should try some spelling variations:
lam chat » luan chat, cao chat, ly chat
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
lam cua » nam cua
nang o » nang co, nang ho, nang ro
xuc va » tuc va, luc va, xac va
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 nang o hoi. hieu ve cham ((xuc va) OR (duc va)) thanh ((lam cua) or (lam chat)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky nang o hoi. hieu ve cham ((xuc va) OR (duc va)) thanh ((lam cua) OR (lam chat)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky nang o hoi. hieu ve cham ((xuc va) OR (duc va)) thanh ((lam cua) or (lam chat)) triet".
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang o hoi. hieu ve cham ((xuc va) OR (duc va)) thanh ((lam cua) or (lam chat)) triet*.