Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
hien cac » thien cac, vien cac, hieu cac
hanh vai » hanh vi, hanh va, hanh tai
va hanh » van hanh, va thanh, va danh
sach ky » sac ky, sach y, sach ty
so sach » so sanh, bo sach, co sach
nang xa » lang xa, nang ma, mang xa
cac lo » cac lop, cac co, cac bo
cua te » cua tu
cua su » qua su
lo va » lo van, lao va, ly va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky ((nang xa) or (nang x)) hoi. hieu hien cac lo va hanh vai ((cua te) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky ((nang xa) OR (nang x)) hoi. hieu hien cac lo va hanh vai ((cua te) OR (cua su)).
• Adding a wildcard symbol may retrieve word variants: so sach ky ((nang xa) or (nang x)) hoi. hieu hien cac lo va hanh vai ((cua te) or (cua su))*.