Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
cua viet » ca viet, hoa viet, cua vat
va thanh » gia thanh, ban thanh, va tinh
lap cua » lai cua, tap cua, lam cua
vu sach » vu bach, su sach, vu khach
y nang » ky nang, ly nang, v nang
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
ve cam » ve cham, ve cac, ve cai
o hoc » co hoc, mo hoc, so hoc
o hoi » co hoi, 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 (o hoc)). hieu ((ve cam) or (va cam)) xuc va thanh lap cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang ((o hoi) OR (o hoc)). hieu ((ve cam) OR (va cam)) xuc va thanh lap cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y nang ((o hoi) OR (o hoc)). hieu ((ve cam) or (va cam)) xuc va thanh lap cua viet".
• Adding a wildcard symbol may retrieve word variants: vu sach y nang ((o hoi) OR (o hoc)). hieu ((ve cam) or (va cam)) xuc va thanh lap cua viet*.