Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
thu sac » thu sach, thu san, thu xac
nang co » nang cao, nang doc, nang noi
hieu ve » hieu va, hieu van
cau luc » cau truc, cau phuc
sac ky » cac ky, sai ky
co hoi » co hoc, co loi
va anh » van anh, va danh, va hanh
anh ve » hanh ve, anh va, anh viet
ve cau » ke cau, va cau, ve cac

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: thu sac ky nang co hoi. hieu ve ((coc luc) OR (cau luc)) va anh ve cau tren~.
• Adding a wildcard symbol may retrieve word variants: thu sac ky nang co hoi. hieu ve ((coc luc) or (cau luc)) va anh ve cau tren*.