Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
hien cac » thien cac, vien cac, hieu cac
luu tre » luu tru, luy tre
danh vi » hanh vi, dinh vi, danh di
xa danh » va danh, dia danh, nam danh
cac tuc » cac toc, cac tu, cac tac
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
cuu tre » cua tre, cau tren, cau treo
x hoi » xa hoi, o hoi, x ho

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) or (su sach)) ky nang x hoi. hieu hien cac tuc xa danh vi ((luu tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang x hoi. hieu hien cac tuc xa danh vi ((luu tre) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) ky nang x hoi. hieu hien cac tuc xa danh vi ((luu tre) OR (cuu tre))*".