Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
tang mai » tang ma, tang tai, lang mai
thanh di » thanh doi, thanh de, thanh do
tu sach » thu sach, te sach, tu cach
xuc van » duc van, luc van, vuc van
mai hoi » mai khoi, dai hoi, lai hoi
ky tang » ky nang, ky dang, kho tang
su sach » so sach, vu sach
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao
di cua » dai cua, doi cua, de cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky tang mai hoi. hieu ((ve cam) OR (va cam)) xuc van thanh di cua vat~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) ky tang mai hoi. hieu ((ve cam) or (va cam)) xuc van thanh di cua vat~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) ky tang mai hoi. hieu ((ve cam) or (va cam)) xuc van thanh di cua vat*.