Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
van thanh » ban thanh, van tuan
thien van » thi van
cau tren » cu tren, dau tren, ca tren
cham xuc » cam xuc, chat xuc, pham duc
sach ky » sac ky, sach y, sach ty
vai cau » va cau, van cau, vai cac
tu sach » thu sach, su sach, te sach
ro hoi » co hoi, mo hoi, ro doi
o hoi » co hoi, o hoc, o hai

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 ky nang ((ro hoi) OR (o hoi)). thien van ((cham xuc) or (cham soc)) van thanh vai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ((ro hoi) OR (o hoi)). thien van ((cham xuc) OR (cham soc)) van thanh vai cau tren*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang ((ro hoi) OR (o hoi)). thien van ((cham xuc) or (cham soc)) van thanh vai cau tren*".