Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
van thanh » ban thanh, van tuan
hau tren » dau tren, cau tren, thai tren
cham xuc » cam xuc, chat xuc, pham duc
hieu van » hieu va, thien van, lieu va
sach ky » sach y, sach ty, sach kem
van hau » van ha, van hai, van dau
nang o » nang co, nang ho, nang ro
sac ky » cac ky, sai ky
o hoi » co hoi, o hoc, o hai

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 ky) OR (sac ky)) nang o hoi. hieu van ((cham xuc) OR (cham soc)) van thanh van hau tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sac ky)) nang o hoi. hieu van ((cham xuc) or (cham soc)) van thanh van hau tren~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sac ky)) nang o hoi. hieu van ((cham xuc) or (cham soc)) van thanh van hau tren*.