Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
hieu ve » hieu va, hieu van
vu sach » vu bach, su sach, vu khach
co hoi » co hoc, co loi
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va
lam ha » dam ha, lam chat, lam thay
nam ha » nam a, nam va, nam da
ve cam » ve cham, ve cac, va cam
o hoi » o hoc, o hai, o hoa

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