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
van hau » van ha, van hai, van dau
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
nang co » nang cao, nang doc, nang noi
nang o » nang ho, nang ro, nang x

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 ((nang o) OR (nang co)) hoi. hieu va ((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 ((nang o) OR (nang co)) hoi. hieu va ((cham xuc) or (cham soc)) van thanh van hau tren~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((nang o) OR (nang co)) hoi. hieu va ((cham xuc) or (cham soc)) van thanh van hau tren*.