Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh va » thanh van, hanh va, thanh ha
tu sach » thu sach, su sach, te sach
ve cham » va cham, ve chat, vu cham
xuc van » duc van, luc van, vuc van
cua duc » cua tuc, cua nuoc, cua quoc
lai hoi » dai hoi, lai hoa, lai roi
mai hoi » mai khoi, dai hoi, mai doi
y nang » ky nang, ly nang, v nang
va cua » va chua, via cua, ca cua
ve cam » ve cac, va cam, ve cai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang ((mai hoi) or (lai hoi)). hieu ((ve cam) OR (ve cham)) xuc van thanh va cua duc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang ((mai hoi) OR (lai hoi)). hieu ((ve cam) OR (ve cham)) xuc van thanh va cua duc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang ((mai hoi) or (lai hoi)). hieu ((ve cam) OR (ve cham)) xuc van thanh va cua duc".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ((mai hoi) or (lai hoi)). hieu ((ve cam) OR (ve cham)) xuc van thanh va cua duc*.